RTL8309SB SINGLE-CHIP 9-PORT 10/100MBPS SWITCH CONTROLLER DATASHEET Rev. 1.4 09 July 2004 Track ID: JATR-1076-21 RTL8309SB Datasheet COPYRIGHT (c)2004 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of Realtek Semiconductor Corp. DISCLAIMER Realtek provides this document "as is", without warranty of any kind, neither expressed nor implied, including, but not limited to, the particular purpose. Realtek may make improvements and/or changes in this document or in the product described in this document at any time. This document could include technical inaccuracies or typographical errors. TRADEMARKS Realtek is a trademark of Realtek Semiconductor Corporation. Other names mentioned in this document are trademarks/registered trademarks of their respective owners. USING THIS DOCUMENT This document provides detailed user guidelines to achieve the best performance when implementing a 2-layer board PC design with the RTL8309SB Single-Chip 9-port 10/100Mbps Switch Controller. Though every effort has been made to assure that this document is current and accurate, more information may have become available subsequent to the production of this guide. In that event, please contact your Realtek representative for additional information that may help in the development process. Single-Chip 9-Port 10/100Mbps Switch Controller ii Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet REVISION HISTORY Revision 1.0 1.1 Release Date 2003/04/12 2003/05/15 1.2 2003/12/01 1.3 2004/06/10 1.4 2004/07/09 Summary First release. Revised pin descriptions. Revised description for Bi-color LED. New Bi-color LED Reference Schematic figure. Add 3.3V items to electrical characteristics. Add thermal operating range temperatures. Revised pin description of Dis_VLAN. Revised pin description of Max_Pause_Count. Revised default VLAN membership configuration for Disable VLAN function in PHY register 16.11. Update default value of Differential Service Code Point [B] in EEPROM and PHY registers. Update default value of VLAN ID [A] membership in EERPOM. Update default value of ISP MAC Address in EEPROM. Update default value of Port 8 VLAN Index in EEPROM. Revised the definition for WAN port specification in EEPROM and PHY registers. Revised the definition for CPU port specification in EEPROM and PHY registers. Removed the Bypass CRC function in EEPROM. Removed the Good Link Quality Threshold function in EEPROM and PHY registers. Add explanation of Indirect Access Data in PHY 7 Register 17~20. Removed PHY0~PHY7 REG2 and REG3 info. Update pin number ordering on Pin Description Table. Change the term "Auto MDIX" to "Crossover Detection and auto correction". Removed QoS feature for IPv6. Single-Chip 9-Port 10/100Mbps Switch Controller iii Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table of Contents 1. GENERAL DESCRIPTION................................................................................................................................................1 2. FEATURES...........................................................................................................................................................................3 3. BLOCK DIAGRAM.............................................................................................................................................................4 4. PIN ASSIGNMENTS ...........................................................................................................................................................5 5. PIN DESCRIPTIONS ..........................................................................................................................................................7 6. 5.1. MEDIA CONNECTION PINS ..........................................................................................................................................7 5.2. MII PORT MAC INTERFACE PINS ...............................................................................................................................7 5.3. MISCELLANEOUS PINS ................................................................................................................................................9 5.4. PORT LED PINS ..........................................................................................................................................................9 5.5. SERIAL EEPROM AND SMI PINS .............................................................................................................................11 5.6. STRAPPING PINS........................................................................................................................................................12 5.7. POWER PINS ..............................................................................................................................................................16 EEPROM REGISTER DESCRIPTION ..........................................................................................................................17 6.1. GLOBAL CONTROL REGISTERS..................................................................................................................................17 6.1.1. Global Control Register0 ...................................................................................................................................17 6.1.2. Global Control Register1 ...................................................................................................................................17 6.1.3. Global Control Register2 ...................................................................................................................................18 6.1.4. Global Control Register3 ...................................................................................................................................18 6.1.5. Global Control Register4 ...................................................................................................................................19 6.1.6. Global Control Register5 ...................................................................................................................................19 6.1.7. Global Control Register6 ...................................................................................................................................19 6.1.8. Global Control Register7 ...................................................................................................................................19 6.2. PORT 0~7 CONTROL PINS ..........................................................................................................................................20 6.2.1. Port 0 Control 0..................................................................................................................................................20 6.2.2. Port 0 Control 1..................................................................................................................................................20 6.2.3. Port 0 Control 2..................................................................................................................................................21 6.2.4. Port 0 Control 3..................................................................................................................................................21 6.2.5. Port 0 Control 4..................................................................................................................................................21 6.2.6. IP Address...........................................................................................................................................................22 6.2.7. Port 1 Control 0..................................................................................................................................................23 6.2.8. Port 1 Control 1..................................................................................................................................................23 Single-Chip 9-Port 10/100Mbps Switch Controller iv Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.9. Port 1 Control 2..................................................................................................................................................24 6.2.10. Port 1 Control 3..................................................................................................................................................24 6.2.11. Port 1 Control 4..................................................................................................................................................24 6.2.12. IP Mask ..............................................................................................................................................................25 6.2.13. Port 2 Control 0..................................................................................................................................................25 6.2.14. Port 2 Control 1..................................................................................................................................................26 6.2.15. Port 2 Control 2..................................................................................................................................................26 6.2.16. Port 2 Control 3..................................................................................................................................................26 6.2.17. Port 2 Control 4..................................................................................................................................................27 6.2.18. Switch MAC Address ..........................................................................................................................................27 6.2.19. Port 3 Control 0..................................................................................................................................................28 6.2.20. Port 3 Control 1..................................................................................................................................................28 6.2.21. Port 3 Control 2..................................................................................................................................................29 6.2.22. Port 3 Control 3..................................................................................................................................................29 6.2.23. Port 3 Control 4..................................................................................................................................................29 6.2.24. ISP MAC Address ...............................................................................................................................................30 6.2.25. Port 4 Control 0..................................................................................................................................................30 6.2.26. Port 4 Control 1..................................................................................................................................................30 6.2.27. Port 4 Control 2..................................................................................................................................................31 6.2.28. Port 4 Control 3..................................................................................................................................................31 6.2.29. Port 4 Control 4..................................................................................................................................................31 6.3. MII PORT CONTROL PINS..........................................................................................................................................32 6.3.1. MII Port Control 0..............................................................................................................................................32 6.3.2. MII Port Control 1..............................................................................................................................................32 6.3.3. MII Port Control 2..............................................................................................................................................33 6.3.4. CPU Port and WAN Port....................................................................................................................................33 6.4. PORT 5~7 CONTROL PINS ..........................................................................................................................................34 6.4.1. Port 5 Control 0..................................................................................................................................................34 6.4.2. Port 5 Control 1..................................................................................................................................................34 6.4.3. Port 5 Control 2..................................................................................................................................................35 6.4.4. Port 5 Control 3..................................................................................................................................................35 6.4.5. Port 5 Control 4..................................................................................................................................................35 6.4.6. Port 6 Control 0..................................................................................................................................................36 6.4.7. Port 6 Control 1..................................................................................................................................................36 6.4.8. Port 6 Control 2..................................................................................................................................................36 Single-Chip 9-Port 10/100Mbps Switch Controller v Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7. 6.4.9. Port 6 Control 3..................................................................................................................................................37 6.4.10. Port 6 Control 4..................................................................................................................................................37 6.4.11. Port 7 Control 0..................................................................................................................................................38 6.4.12. Port 7 Control 1..................................................................................................................................................38 6.4.13. Port 7 Control 2..................................................................................................................................................38 6.4.14. Port 7 Control 3..................................................................................................................................................39 6.4.15. Port 7 Control 4..................................................................................................................................................39 PHY REGISTERS DESCRIPTION .................................................................................................................................40 7.1. PHY 0 REGISTERS ....................................................................................................................................................40 7.1.1. PHY 0 Register 0: Control..................................................................................................................................40 7.1.2. PHY 0 Register 1: Status ....................................................................................................................................41 7.1.3. PHY 0 Register 4: Auto-Negotiation Advertisement...........................................................................................42 7.1.4. PHY 0 Register 5: Auto-Negotiation Link Partner Ability..................................................................................42 7.1.5. PHY 0 Register 6: Auto-Negotiation Expansion.................................................................................................43 7.1.6. PHY 0 Register 16: Global Control 0.................................................................................................................43 7.1.7. PHY 0 Register 17: Global Control 1.................................................................................................................45 7.1.8. PHY 0 Register 18: Global Control 2.................................................................................................................46 7.1.9. PHY 0 Register 19: Global Control 3.................................................................................................................46 7.1.10. PHY 0 Register 22: Port 0 Control 0..................................................................................................................46 7.1.11. PHY 0 Register 23: Port 0 Control 1..................................................................................................................48 7.1.12. PHY 0 Register 24: Port 0 Control 2 & VLAN Entry [A]...................................................................................48 7.1.13. PHY 0 Register 25: VLAN Entry [A] ..................................................................................................................48 7.2. PHY 1 REGISTERS ....................................................................................................................................................49 7.2.1. PHY 1 Register 0: Control..................................................................................................................................49 7.2.2. PHY 1 Register 1: Status ....................................................................................................................................49 7.2.3. PHY 1 Register 4: Auto-Negotiation Advertisement...........................................................................................49 7.2.4. PHY 1 Register 5: Auto-Negotiation Link Partner Ability..................................................................................49 7.2.5. PHY 1 Register 6: Auto-Negotiation Expansion.................................................................................................49 7.2.6. PHY 1 Register 16~17: IP Priority Address [A].................................................................................................49 7.2.7. PHY 1 Register 18~19: IP Priority Address [B].................................................................................................49 7.2.8. PHY 1 Register 22: Port 1 Control 0..................................................................................................................50 7.2.9. PHY 1 Register 23: Port 1 Control 1..................................................................................................................50 7.2.10. PHY 1 Register 24: Port 1 Control 2 & VLAN Entry [B]...................................................................................50 7.2.11. PHY 1 Register 25: VLAN Entry [B] ..................................................................................................................50 Single-Chip 9-Port 10/100Mbps Switch Controller vi Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.3. PHY 2 REGISTERS ....................................................................................................................................................50 7.3.1. PHY 2 Register 0: Control..................................................................................................................................50 7.3.2. PHY 2 Register 1: Status ....................................................................................................................................50 7.3.3. PHY 2 Register 4: Auto-Negotiation Advertisement...........................................................................................50 7.3.4. PHY 2 Register 5: Auto-Negotiation Link Partner Ability..................................................................................51 7.3.5. PHY 2 Register 6: Auto-Negotiation Expansion.................................................................................................51 7.3.6. PHY 2 Register 16~17: IP Priority Mask [A] ....................................................................................................51 7.3.7. PHY 2 Register 18~19: IP Priority Mask [B] ....................................................................................................51 7.3.8. PHY 2 Register 22: Port 2 Control 0..................................................................................................................51 7.3.9. PHY 2 Register 23: Port 2 Control 1..................................................................................................................51 7.3.10. PHY 2 Register 24: Port 2 Control 2 & VLAN Entry [C]...................................................................................52 7.3.11. PHY 2 Register 25: VLAN Entry [C]..................................................................................................................52 7.4. PHY 3 REGISTERS ....................................................................................................................................................52 7.4.1. PHY 3 Register 0: Control..................................................................................................................................52 7.4.2. PHY 3 Register 1: Status ....................................................................................................................................52 7.4.3. PHY 3 Register 4: Auto-Negotiation Advertisement...........................................................................................52 7.4.4. PHY 3 Register 5: Auto-Negotiation Link Partner Ability..................................................................................52 7.4.5. PHY 3 Register 6: Auto-Negotiation Expansion.................................................................................................52 7.4.6. PHY 3 Register 16~18: Switch MAC Address ....................................................................................................52 7.4.7. PHY 3 Register 22: Port 3 Control 0..................................................................................................................53 7.4.8. PHY 3 Register 23: Port 3 Control 1..................................................................................................................53 7.4.9. PHY 3 Register 24: Port 3 Control 2 & VLAN Entry [D] ..................................................................................53 7.4.10. PHY 3 Register 25: VLAN Entry [D]..................................................................................................................53 7.5. PHY 4 REGISTERS ....................................................................................................................................................54 7.5.1. PHY 4 Register 0: Control..................................................................................................................................54 7.5.2. PHY 4 Register 1: Status ....................................................................................................................................54 7.5.3. PHY 4 Register 4: Auto-Negotiation Advertisement...........................................................................................54 7.5.4. PHY 4 Register 5: Auto-Negotiation Link Partner Ability..................................................................................54 7.5.5. PHY 4 Register 6: Auto-Negotiation Expansion.................................................................................................54 7.5.6. PHY 4 Register 16~18: ISP MAC Address .........................................................................................................54 7.5.7. PHY 4 Register 22: Port 4 Control 0..................................................................................................................54 7.5.8. PHY 4 Register 23: Port 4 Control 1..................................................................................................................54 7.5.9. PHY 4 Register 24: Port 4 Control 2 & VLAN Entry [E]...................................................................................55 7.5.10. PHY 4 Register 25: VLAN Entry [E] ..................................................................................................................55 Single-Chip 9-Port 10/100Mbps Switch Controller vii Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.6. PHY 5 REGISTERS ....................................................................................................................................................55 7.6.1. PHY 5 Register 0: Control..................................................................................................................................55 7.6.2. PHY 5 Register 1: Status ....................................................................................................................................55 7.6.3. PHY 5 Register 4: Auto-Negotiation Advertisement...........................................................................................55 7.6.4. PHY 5 Register 5: Auto-Negotiation Link Partner Ability..................................................................................55 7.6.5. PHY 5 Register 6: Auto-Negotiation Expansion.................................................................................................55 7.6.6. PHY 5 Register 16: MII Port Control 0..............................................................................................................56 7.6.7. PHY 5 Register 17: MII Port Control 1 & VLAN Entry [I]................................................................................57 7.6.8. PHY 5 Register 18: VLAN Entry [I] ...................................................................................................................57 7.6.9. PHY 5 Register 19: CPU Port & WAN Port.......................................................................................................57 7.6.10. PHY 5 Register 22: Port 5 Control 0..................................................................................................................58 7.6.11. PHY 5 Register 23: Port 5 Control 1..................................................................................................................58 7.6.12. PHY 5 Register 24: Port 5 Control 2 & VLAN Entry [F]...................................................................................58 7.6.13. PHY 5 Register 25: VLAN Entry [F] ..................................................................................................................58 7.7. PHY 6 REGISTERS ....................................................................................................................................................59 7.7.1. PHY 6 Register 0: Control..................................................................................................................................59 7.7.2. PHY 6 Register 1: Status ....................................................................................................................................59 7.7.3. PHY 6 Register 4: Auto-Negotiation Advertisement...........................................................................................59 7.7.4. PHY 6 Register 5: Auto-Negotiation Link Partner Ability..................................................................................59 7.7.5. PHY 6 Register 6: Auto-Negotiation Expansion.................................................................................................59 7.7.6. PHY 6 Register 22: Port 6 Control 0..................................................................................................................59 7.7.7. PHY 6 Register 23: Port 6 Control 1..................................................................................................................59 7.7.8. PHY 6 Register 24: Port 6 Control 2 & VLAN Entry [G] ..................................................................................60 7.7.9. PHY 6 Register 25: VLAN Entry [G]..................................................................................................................60 7.8. PHY 7 REGISTERS ....................................................................................................................................................61 7.8.1. PHY 7 Register 0: Control..................................................................................................................................61 7.8.2. PHY 7 Register 1: Status ....................................................................................................................................61 7.8.3. PHY 7 Register 4: Auto-Negotiation Advertisement...........................................................................................61 7.8.4. PHY 7 Register 5: Auto-Negotiation Link Partner Ability..................................................................................61 7.8.5. PHY 7 Register 6: Auto-Negotiation Expansion.................................................................................................61 7.8.6. PHY 7 Register 16: indirect Access Control.......................................................................................................61 7.8.7. PHY 7 Register 17~20: Indirect Access Data.....................................................................................................62 7.8.8. PHY 7 Register 22: Port 7 Control 0..................................................................................................................62 7.8.9. PHY 7 Register 23: Port 7 Control 1..................................................................................................................62 Single-Chip 9-Port 10/100Mbps Switch Controller viii Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.8.10. PHY 7 Register 24: Port 7 Control 2 & VLAN Entry [H] ..................................................................................62 7.8.11. PHY 7 Register 25: VLAN Entry [H]..................................................................................................................63 7.9. 8. PHY 8 REGISTERS ....................................................................................................................................................63 7.9.1. PHY 8 Register 0: Control..................................................................................................................................63 7.9.2. PHY 8 Register 1: Status ....................................................................................................................................64 7.9.3. PHY 8 Register 4: Auto-Negotiation Advertisement...........................................................................................64 7.9.4. MII Port NWay Mode .........................................................................................................................................65 7.9.5. MII Port Force Mode .........................................................................................................................................65 FUNCTIONAL DESCRIPTION.......................................................................................................................................66 8.1. PHYSICAL LAYER TRANSCEIVER FUNCTIONAL OVERVIEW .......................................................................................66 8.1.1. Auto Negotiation for UTP ..................................................................................................................................66 8.1.2. 100Base-Tx Transmit Function ..........................................................................................................................66 8.1.3. 100Base-Tx Receive Function ............................................................................................................................66 8.1.4. 10Base-T Transmit Function ..............................................................................................................................67 8.1.5. 10Base-T Receive Function ................................................................................................................................67 8.1.6. Link Monitor.......................................................................................................................................................67 8.1.7. Power Saving Mode............................................................................................................................................67 8.1.8. Power-Down Mode.............................................................................................................................................67 8.1.9. Auto Crossover Detection...................................................................................................................................68 8.2. SWITCH CORE FUNCTIONAL OVERVIEW....................................................................................................................68 8.2.1. Address Search, Learning, and Aging ................................................................................................................68 8.2.2. Flow Control ......................................................................................................................................................69 8.2.3. Half Duplex Operation .......................................................................................................................................69 8.2.4. Backpressure ......................................................................................................................................................70 8.2.5. UTP Port Status Configuration ..........................................................................................................................70 8.2.6. MII Port (The 9th Port) ......................................................................................................................................70 8.3. ADVANCED FUNCTIONALITY OVERVIEW ...................................................................................................................74 8.3.1. Port-Based VLAN ...............................................................................................................................................74 8.3.2. 802.1Q Tagged-VID based VLAN.......................................................................................................................76 8.3.3. QoS Operation....................................................................................................................................................77 8.3.4. Insert/Remove VLAN Priority Tag......................................................................................................................78 8.3.5. Port VID (PVID) ................................................................................................................................................79 8.3.6. Port Trunking .....................................................................................................................................................79 8.3.7. ISP MAC Address Translation ............................................................................................................................79 8.3.8. Lookup Table Access...........................................................................................................................................81 Single-Chip 9-Port 10/100Mbps Switch Controller ix Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 9. 8.3.9. Serial Management Interface (SMI) ...................................................................................................................81 8.3.10. Broadcast Storm Control ....................................................................................................................................82 8.3.11. Broadcast In/Out Drop .......................................................................................................................................82 8.3.12. EEPROM Configuration Interface .....................................................................................................................83 8.3.13. 24LC02 Device Operation..................................................................................................................................83 8.3.14. Head-of-Line Blocking .......................................................................................................................................84 8.3.15. MII Port Diagnostic Loopback...........................................................................................................................85 8.3.16. Loop Detection ...................................................................................................................................................86 8.3.17. LEDs (Light Emitting Diodes)............................................................................................................................87 CHARACTERISTICS .......................................................................................................................................................90 9.1. ABSOLUTE MAXIMUM RATINGS................................................................................................................................90 9.2. OPERATING RANGE ...................................................................................................................................................90 9.3. DC CHARACTERISTICS .............................................................................................................................................90 9.4. AC CHARACTERISTICS .............................................................................................................................................91 9.5. DIGITAL TIMING CHARACTERISTICS .........................................................................................................................92 9.6. THERMAL CHARACTERISTICS ...................................................................................................................................94 10. SYSTEM APPLICATIONS ...........................................................................................................................................95 11. DESIGN AND LAYOUT GUIDE..................................................................................................................................96 12. MECHANICAL DIMENSIONS ...................................................................................................................................99 12.1. NOTES FOR 128-PIN LQFP DIMENSIONS ................................................................................................................100 Single-Chip 9-Port 10/100Mbps Switch Controller x Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet List of Tables Table 1. Pin Assignments.............................................................................................................................6 Table 2. Media Connection Pins ..................................................................................................................7 Table 3. MII Port MAC Interface Pins ........................................................................................................7 Table 4. Miscellaneous Pins.........................................................................................................................9 Table 5. Port LED Pins ................................................................................................................................9 Table 6. Serial EEPROM and SMI Pins ....................................................................................................11 Table 7. Strapping Pins ..............................................................................................................................12 Table 8. Power Pins ...................................................................................................................................16 Table 9. Global Control Register0 .............................................................................................................17 Table 10. Global Control Register1 .............................................................................................................17 Table 11. Global Control Register2 .............................................................................................................18 Table 12. Global Control Register3 .............................................................................................................18 Table 13. Global Control Register4 .............................................................................................................19 Table 14. Global Control Register5 .............................................................................................................19 Table 15. Global Control Register6 .............................................................................................................19 Table 16. Global Control Register7 .............................................................................................................19 Table 17. Port 0 Control 0............................................................................................................................20 Table 18. Port 0 Control 1............................................................................................................................20 Table 19. Port 0 Control 2............................................................................................................................21 Table 20. Port 0 Control 3............................................................................................................................21 Table 21. Port 0 Control 4............................................................................................................................21 Table 22. IP Address ....................................................................................................................................22 Table 23. Port 1 Control 0............................................................................................................................23 Table 24. Port 1 Control 1............................................................................................................................23 Table 25. Port 1 Control 2............................................................................................................................24 Table 26. Port 1 Control 3............................................................................................................................24 Table 27. Port 1 Control 4............................................................................................................................24 Table 28. IP Mask ........................................................................................................................................25 Table 29. Port 2 Control 0............................................................................................................................25 Table 30. Port 2 Control 1............................................................................................................................26 Table 31. Port 2 Control 2............................................................................................................................26 Table 32. Port 2 Control 3............................................................................................................................26 Table 33. Port 2 Control 4............................................................................................................................27 Single-Chip 9-Port 10/100Mbps Switch Controller xi Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 34. Switch MAC Address ..................................................................................................................27 Table 35. Port 3 Control 0............................................................................................................................28 Table 36. Port 3 Control 1............................................................................................................................28 Table 37. Port 3 Control 2............................................................................................................................29 Table 38. Port 3 Control 3............................................................................................................................29 Table 39. Port 3 Control 4............................................................................................................................29 Table 40. ISP MAC Address........................................................................................................................30 Table 41. Port 4 Control 0............................................................................................................................30 Table 42. Port 4 Control 1............................................................................................................................30 Table 43. Port 4 Control 2............................................................................................................................31 Table 44. Port 4 Control 3............................................................................................................................31 Table 45. Port 4 Control 4............................................................................................................................31 Table 46. MII Port Control 0 .......................................................................................................................32 Table 47. MII Port Control 1 .......................................................................................................................32 Table 48. MII Port Control 2 .......................................................................................................................33 Table 49. CPU Port and WAN Port..............................................................................................................33 Table 50. Port 5 Control 0............................................................................................................................34 Table 51. Port 5 Control 1............................................................................................................................34 Table 52. Port 5 Control 2............................................................................................................................35 Table 53. Port 5 Control 3............................................................................................................................35 Table 54. Port 5 Control 4............................................................................................................................35 Table 55. Port 6 Control 0............................................................................................................................36 Table 56. Port 6 Control 1............................................................................................................................36 Table 57. Port 6 Control 2............................................................................................................................36 Table 58. Port 6 Control 3............................................................................................................................37 Table 59. Port 6 Control 4............................................................................................................................37 Table 60. Port 7 Control 0............................................................................................................................38 Table 61. Port 7 Control 1............................................................................................................................38 Table 62. Port 7 Control 2............................................................................................................................38 Table 63. Port 7 Control 3............................................................................................................................39 Table 64. Port 7 Control 4............................................................................................................................39 Table 65. PHY 0 Register 0: Control ...........................................................................................................40 Table 66. PHY 0 Register 1: Status .............................................................................................................41 Table 67. PHY 0 Register 4: Auto-Negotiation Advertisement...................................................................42 Table 68. PHY 0 Register 5: Auto-Negotiation Link Partner Ability ..........................................................42 Single-Chip 9-Port 10/100Mbps Switch Controller xii Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 69. PHY 0 Register 6: Auto-Negotiation Expansion .........................................................................43 Table 70. PHY 0 Register 16: Global Control 0 ..........................................................................................43 Table 71. PHY 0 Register 17: Global Control 1 ..........................................................................................45 Table 72. PHY 0 Register 18: Global Control 2 ..........................................................................................46 Table 73. PHY 0 Register 19: Global Control 3 ..........................................................................................46 Table 74. PHY 0 Register 22: Port 0 Control 0 ...........................................................................................46 Table 75. PHY 0 Register 23: Port 0 Control 1 ...........................................................................................48 Table 76. PHY 0 Register 24: Port 0 Control 2 & VLAN Entry [A]...........................................................48 Table 77. PHY 0 Register 25: VLAN Entry [A]..........................................................................................48 Table 78. PHY 1 Register 16~17: IP Priority Address [A] ..........................................................................49 Table 79. PHY 1 Register 18~19: IP Priority Address [B] ..........................................................................49 Table 80. PHY 1 Register 24: Port 1 Control 2 & VLAN Entry [B] ...........................................................50 Table 81. PHY 1 Register 25: VLAN Entry [B] ..........................................................................................50 Table 82. PHY 2 Register 16~17: IP Priority Mask [A] ..............................................................................51 Table 83. PHY 2 Register 18~19: IP Priority Mask [B] ..............................................................................51 Table 84. PHY 2 Register 24: Port 2 Control 2 & VLAN Entry [C] ...........................................................52 Table 85. PHY 2 Register 25: VLAN Entry [C] ..........................................................................................52 Table 86. PHY 3 Register 16~18: Switch MAC Address ............................................................................53 Table 87. PHY 3 Register 24: Port 3 Control 2 & VLAN Entry [D]...........................................................53 Table 88. PHY 3 Register 25: VLAN Entry [D]..........................................................................................53 Table 89. PHY 4 Register 16~18: ISP MAC Address .................................................................................54 Table 90. PHY 4 Register 24: Port 4 Control 2 & VLAN Entry [E] ...........................................................55 Table 91. PHY 4 Register 25: VLAN Entry [E] ..........................................................................................55 Table 92. PHY 5 Register 16: MII Port Control 0 .......................................................................................56 Table 93. PHY 5 Register 17: MII Port Control 1 & VLAN Entry [I] ........................................................57 Table 94. PHY 5 Register 18: VLAN Entry [I] ...........................................................................................57 Table 95. PHY 5 Register 19: CPU Port & WAN Port ................................................................................57 Table 96. PHY 5 Register 24: Port 5 Control 2 & VLAN Entry [F] ...........................................................58 Table 97. PHY 5 Register 25: VLAN Entry [F] ..........................................................................................58 Table 98. PHY 6 Register 24: Port 6 Control 2 & VLAN Entry [G]...........................................................60 Table 99. PHY 6 Register 25: VLAN Entry [G]..........................................................................................60 Table 100. PHY 7 Register 16: Indirect Access Control .............................................................................61 Table 101. PHY 7 Register 17~20: Indirect Access Data ............................................................................62 Table 102. PHY 7 Register 24: Port 7 Control 2 & VLAN Entry [H].........................................................62 Table 103. PHY 7 Register 25: VLAN Entry [H]........................................................................................63 Single-Chip 9-Port 10/100Mbps Switch Controller xiii Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 104. PHY 8 Register 0: Control .........................................................................................................63 Table 105. PHY 8 Register 1: Status............................................................................................................64 Table 106. PHY 8 Register 4: Auto-Negotiation Advertisement.................................................................64 Table 107. MII Port NWay Mode ................................................................................................................65 Table 108. MII Port Force Mode .................................................................................................................65 Table 109. 802.1Q VLAN Tag Frame Format .............................................................................................78 Table 110. IPv4 Frame Format ....................................................................................................................78 Table 111. SMI Read/Write Cycles..............................................................................................................81 Table 112. Loop Frame Format ...................................................................................................................86 Table 113. Speed and Bi-Color Link/Act Truth Table .................................................................................88 Table 114. Absolute Maximum Ratings.......................................................................................................90 Table 115. Operating Range ........................................................................................................................90 Table 116. DC Characteristics .....................................................................................................................90 Table 117. AC Characteristics......................................................................................................................91 Table 118. Digital Timing Characteristics ...................................................................................................93 Table 119. Thermal Operating Range ..........................................................................................................94 Table 120. Thermal Resistance....................................................................................................................95 Single-Chip 9-Port 10/100Mbps Switch Controller xiv Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet List of Figures Figure 1. Block Diagram .............................................................................................................................4 Figure 2. Pin Assignments ...........................................................................................................................5 Figure 3. MII Port Application ..................................................................................................................71 Figure 4. MII Port Operating Mode Overview..........................................................................................72 Figure 5. VLAN Grouping Example .........................................................................................................75 Figure 6. Tagged and Untagged Packet Forwarding When 802.1Q Tag Aware VLAN is Disabled .........76 Figure 7. ISP MAC Outbound Process ......................................................................................................80 Figure 8. ISP MAC Inbound Process.........................................................................................................80 Figure 9. Input Drop vs. Output Drop .......................................................................................................82 Figure 10. Start and Stop Definition ............................................................................................................83 Figure 11. Output Acknowledge ..................................................................................................................84 Figure 12. Random Read .............................................................................................................................84 Figure 13. Sequential Read..........................................................................................................................84 Figure 14. MII Port Loopback .....................................................................................................................85 Figure 15. Loop Example ............................................................................................................................86 Figure 16. Floating and Pull-down of LED Pins .........................................................................................87 Figure 17. Two-Pin Bi-Color LED for SPD Floating or Pull-high..............................................................88 Figure 18. Two-Pin Bi-Color LED for SPD Pull-down...............................................................................88 Figure 19. Bi-Color LED Reference Schematic ..........................................................................................89 Figure 20. Reception Data Timing of MII/SNI/SMI Interface ....................................................................92 Figure 21. Transmission Data Timing of MII/SNI/SMI Interface...............................................................92 Figure 22. Cross-section of 128-Pin PQFP..................................................................................................94 Figure 23. Application for Transformer with Connected Central Tap .........................................................97 Figure 24. Bob Smith Termination ..............................................................................................................98 Single-Chip 9-Port 10/100Mbps Switch Controller xv Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 1. General Description The RTL8309SB is a 128-pin, ultra low power, high-performance 8-port Fast Ethernet single-chip switch with one extra MII port for specific applications. It integrates all the functions of a high speed switch system--including SRAM for packet buffering, non-blocking switch fabric, address management, one general use MII interface, eight 10/100Base-TX transceivers, and nine Media Access Controllers--into a single 0.18m CMOS device. It provides compatibility with all industry standard Ethernet and Fast Ethernet devices. Only a 25MHz crystal is required; the EEPROM is optional to save BOM costs. The embedded packet storage SRAM in the RTL8309SB features superior memory management technology to efficiently utilize the memory space. An integrated 1024-entry look-up table stores MAC address and associated information in a 10-bit direct mapping scheme. The table provides read/write access from the SMI interface, and each of the entries can be configured as a static entry. A static entry indicates that this entry is controlled by the external management processor and automatic aging and learning of the entry will not take place. To prevent MAC address mapping collisions, the embedded 16entry Content-Addressable Memory (CAM) offers another memory space for recording the MAC address when the mapped entry in the lookup table is occupied. For each incoming packet, the RTL8309SB searches the entries in the lookup table and the 16-entry CAM simultaneously. Then it obtains the correct destination port information to determine which output port the packet should be forwarded to. The aging time of the RTL8309SB is around 300 seconds (this may be sped up to 800s via EEPROM configuration). The ninth port of the RTL8309SB implements a MAC module without a PHY transceiver to provide an MII interface for connection with an external PHY or MAC in specific applications. This MII interface may be set to MII PHY mode, SNI PHY mode, or MII MAC mode to work with an external MAC module in a routing engine application, PHY module in a HomePNA application, or other physical layer transceivers. In order to operate correctly, both sides of the connection must be configured to the same speed, duplex, and flow control settings. Four pins are used for the ninth port to force the link status. This interface should be 2.5V or 3.3V compatible depending on the voltage supplied to the power pin VDDIO of this interface. The RTL8309SB is capable of preventing broadcast storms by setting strapping pins upon system reset. When this function is enabled, it will drop broadcast packets after receiving 64 continuous broadcast packets. This counter will be reset to 0 every 800ms or when the RTL8309SB receives a non-broadcast packet. The RTL8309SB displays the port status via four LED indicators (with optional blinking time setting). These LEDs blink for diagnostic purposes at system reset time. The RTL8309SB provides various type of Single-Chip 9-Port 10/100Mbps Switch Controller 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet LED combinations to fit different applications. Eight combinations of link, activity, speed, duplex, and collision, are available. Bi-color LED mode is also supported on the Link/Act LED. The RTL8309SB supports standard 802.3x flow control frames for full duplex, and optional backpressure for half duplex. It determines when to invoke the flow control mechanism by checking the availability of system resources, including the packet buffers and transmitting queues. If one of the forwarding ports is blocked, or system resources are unavailable, broadcast frames will be dropped according to the system configuration. The RTL8309SB support two types of dropping methods. The input dropping method will not forward broadcast packets to any output ports and will drop these packets directly. The output dropping method will forward broadcast packets to non-blocked ports only. To improve real-time and multimedia networking applications, the RTL8309SB supports four types of QoS (Quality of Service). These are based on (1) Port-based priority, (2) 802.1p/Q VLAN priority tag, (3) TOS field in IPv4 header, (4) Specific IP address. Each output port supports a weighted ratio of highpriority and low-priority queues to fit bandwidth requirements in different applications. The RTL8309SB provides 802.1Q port-based VLAN operation to separate logical connectivity from physical connectivity. Each port may be set to any topology via EEPROM upon reset or SMI after reset. The RTL8309SB also provides options to meet special application requirements. The first option is the ARP VLAN function, which is used to select to broadcast ARP frames to all VLANs or only forward ARP frames to the originating VLAN. The second option is the Leaky VLAN function, which is used to select to send unicast frames to other VLANs or only forward unicast frames to the originating VLAN. The VLAN tags can be inserted or removed on a per-port basis. In router applications, the router may want to know which input port this packet came from. The RTL8309SB supports Port VID (PVID) for each port to insert a PVID in the VLAN tag on egress. In this function, the VID information carried in the VLAN tag will be changed to PVID. The RTL8309SB also provides an option to admit VLAN tagged packet with a specific PVID only. If this function is enabled, it will drop non-tagged packets and packets with an incorrect PVID. Each physical layer channel consists of a 4B5B encoder/decoder, Manchester encoder/decoder, transmit output driver, scrambler/descrambler, output wave shaping, filters, digital adaptive equalizer, PLL circuit, and DC restoration circuit for clock/data recovery. This integrated chip benefits from low power consumption and offers advanced functions with flexible configuration for a small workgroup switch, multimedia, or real-time traffic mixed with other data type traffic, and other applications. Single-Chip 9-Port 10/100Mbps Switch Controller 2 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 2. Features Supports QoS function: QoS based on: (1) Port-based priority (2) 802.1p VLAN tag (3) DiffServ/TOS field in TCP/IP header (4) IP address. Supports two-level priority queues with various weighting ratios. Queue service rate based on weighted round robin algorithm. Optional auto turn off Flow Control for 1~2 sec to avoid head-of-line blocking. Supports MII interface connection to external MAC or PHY via 3 modes. PHY mode MII for router applications. PHY mode SNI for router applications. MAC mode MII for HomePNA or other PHY applications. Flexible 802.1Q port/tag-based VLAN. Optional 802.1Q tag-VID aware function. Optional VLAN Ingress Tag Admit Control. Optional VLAN Ingress Member set filtering. Integrates eight 10/100 transceivers and nine MAC units for 10Base-T and 100Base-TX. Embedded SRAM for packet storage. On-chip 1024-entry look-up table in direct mapping mode. Embedded 16-entry CAM for hash collision mapping. Provides read/write access to look-up table entries via SMI interface. Provides non-blocking wire speed reception and transmission. Flow control fully supported: Half-duplex: backpressure flow control. Full-duplex: IEEE 802.3x flow control. Support for 4 LEDs per-port in various combinations for comprehensive applications. Optional loop detection function with an LED to indicate the existence of a loop. Supports MII loopback. LEDs blink upon reset for LED diagnostics. Flexible system configuration by strapping pins, EEPROM, or SMI interface. Optional crossover detection and auto correction for plug-and-play. Fully compliant with IEEE 802.3/802.3u. Optional Forwarding/Filtering reserved control frames (DID= 0180C2000003~0180C200000F). Optional Broadcast Input/Output Drop flow control. Optional maximum packet length 1536/1552 Bytes. Supports two Power Reduction methods: Power saving mode (automatic cable detection). Power down mode (via PHY register 0.11). Single-Chip 9-Port 10/100Mbps Switch Controller Optional ARP VLAN for broadcast packet. Optional Leaky VLAN for unicast packet. Optional 802.1P/Q tag insertion or removal on per-port basis (egress). 25MHz crystal input. 0.18m, CMOS technology. 128-pin PQFP package. 1.8V core voltage. Independent power options for 2.5V or 3.3V MII interface. 3 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 3. Block Diagram Waveform Shaping IBREF 10Base-T or 100Base-TX PHYceiver 10/100 MAC 0 RX+-[1] TX+-[1] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 1 RX+-[2] TX+-[2] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 2 RX+-[3] TX+-[3] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 3 RX+-[4] TX+-[4] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 4 RX+-[5] TX+-[5] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 5 RX+-[6] TX+-[6] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 6 10Base-T or 100Base-TX PHYceiver 10/100 MAC 7 RX+-[7] TX+-[7] MII Signal 13 / Flow Control Flow Control TX/RX FIFO Flow Control TX/RX FIFO Flow Control TX/RX FIFO Flow Control TX/RX FIFO Flow Control TX/RX FIFO Flow Control TX/RX FIFO Look-up Table (1024-entries) Queue Management Buffer Management Packet Buffer Flow Control TX/RX FIFO Flow Control 10/100 MAC 8 MAC Mode RTL8309SB TX/RX FIFO Switch Fabric, VLAN, QoS, Trunking RX+-[0] TX+-[0] TX/RX FIFO EEPROM Interface Control Registers Inter face PHY Mode Mode Select P8MODE[1:0] Figure 1. Block Diagram Single-chip 9-port 10/100Mbps Switch Controller 4 Track ID: JATR-1076-21 Rev. 1.4 VDDA VSSA TXON[1] TXOP[1] VSSA RXIP[1] RXIN[1] VDDA RXIN[2] RXIP[2] VSSA TXOP[2] TXON[2] VDDA TXON[3] TXOP[3] VSSA RXIP[3] RXIN[3] VDDA RXIN[4] RXIP[4] VSSA TXOP[4] TXON[4] VDDA TXON[5] TXOP[5] VSSA RXIP[5] RXIN[5] VDDA RXIN[6] RXIP[6] VSSA TXOP[6] TXON[6] VDDA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 P2_LED[0]/MII_MODE[0] P2_LED[1]/MII_MODE[1] P2_LED[2]/LED_MODE[0] P2_LED[3]/LED_MODE[1] P3_LED[0]/LED_MODE[2] P3_LED[1]/Dis_Trunk VSSD VDDD P3_LED[2]/En_Forward P3_LED[3]/En_Defer P4_LED[0]/En_48pass1 P4_LED[1]/En_Agrs_Back P4_LED[2]/Max_Pkt_Len P4_LED[3]/Max_Pause_Count VSSD VDDD P5_LED[0]/Sel_PortPri[0] P5_LED[1]/Sel_PortPri[1] P5_LED[2]/Dis_VLAN_Pri P5_LED[3]/Dis_DS_Pri P6_LED[0]/QWeight[0] P6_LED[1]/QWeight[1] VSSD VDDD P6_LED[2]/Dis_VLAN P6_LED[3]/Dis_LeakyVLAN P7_LED[0]/Dis_ARPVLAN P7_LED[1]/LED_BLNK_TIME P7_LED[2]/Port_LED_LOC P7_LED[3]/Dis_FC_AutoOff VSSD VDDD MRXD[3]/PTXD[3] MRXD[2]/PTXD[2] MRXD[1]/PTXD[1] MRXD[0]/PTXD[0] MRXDV/PTXEN MRXC/PTXC RTL8309SB Datasheet 4. Pin Assignments En_AutoXover/P1_LED[3] En_ANEG/P1_LED[2] En_FCTRL/P1_LED[1] En_BKPRS/P1_LED[0] VDDD VSSD Force_Duplex/P0_LED[3] Force_Speed/P0_LED[2] En_BRD_CTRL/P0_LED[1] En_RST_BLNK/P0_LED[0] EnEEPROM/LoopLED# VDDD VSSD Test pin VSSPLL X1 X2 VDDPLL Test Pin IBREF VDDA TXON[0] TXOP[0] VSSA RXIP[0] RXIN[0] 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 RTL8309SB Single-chip 9-port 10/100Mbps Switch Controller 5 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 MCOL/PCOL VSSIO VDDIO MTXD[3]/PRXD[3] MTXD[2]/PRXD[2] MTXD[1]/PRXD[1] MTXD[0]/PRXD[0] MTXEN/PRXDV MTXC/PRXC SDA_MDIO SCL_MDC VSSD VDDD MII_LNK_STA# MII_DUP_STA MII_SPD_STA MII_FCTRL_STA RESET# NC Test Pin VDDA TXON[7] TXOP[7] VSSA RXIP[7] RXIN[7] Figure 2. Pin Assignments Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Codes used in the following tables: `A' stands for analog; `D' stands for digital, `I' stands for input; `O' stands for output. Table 1. Pin Assignments Name VDDA, VSSA, TXON[1], TXOP[1], VSSA, RXIP[1], RXIN[1], VDDA, RXIN[2], RXIP[2], VSSA, TXOP[2], TXON[2], VDDA, TXON[3], TXOP[3], VSSA, RXIP[3], RXIN[3], VDDA, RXIN[4], RXIP[4], VSSA, TXOP[4], TXON[4], VDDA, TXON[5], TXOP[5], VSSA, RXIP[5], RXIN[5], VDDA, RXIN[6], RXIP[6], VSSA, TXOP[6], TXON[6], VDDA, RXIN[7], RXIP[7], VSSA, TXOP[7], TXON[7], VDDA, NC, NC RESET# MII_FCTRL_STA, MII_SPD_STA, MII_DUP_STA, MII_LNK_STA#, VDDD, VSSD, SCL_MDC, SDA_MDIO, MTXC/PRXC, MTXEN/PRXDV, MTXD[0]/PRXD[0], MTXD[1]/PRXD[1], MTXD[2]/PRXD[2], MTXD[3]/PRXD[3], VDDIO, VSSIO, MCOL/PCOL Pin No. Type Name 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 AVDD AGND AO AO AGND AI AI AVDD AI AI AGND AO AO AVDD AO AO AGND AI AI AVDD AI AI AGND AO AO AVDD AO AO AGND AI AI AVDD AI AI AGND AO AO AVDD AI AI AGND AO AO AVDD MRXC / PTXC MRXDV / PTXDV, MRXD[0] / PTXD[0], MRXD[1] / PTXD[1], MRXD[2] / PTXD[2], MRXD[3] / PTXD[3], VDDD, VSSD, P7_LED[3] / Dis_FC_AutoOff, P7_LED[2] / Port_LED_LOC, P7_LED[1] / LED_BLNK_TIME, P7_LED[0] / Dis_ARPVLAN, P6_LED[3] / Dis_LeakyVLAN, P6_LED[2] / Dis_VLAN, VDDD, VSSD, P6_LED[1] / QWeight[1], P6_LED[0] / QWeight[0], P5_LED[3] / Dis_DS_Pri, P5_LED[2] / Dis_VLAN_Pri, P5_LED[1] / Sel_PortPri[1], P5_LED[0] / Sel_PortPri[0], VDDD, VSSD, P4_LED[3] / Max_Pause_Count, P4_LED[2] / Max_Pkt_Len, P4_LED[1] / En_Agrs_Back, P4_LED[0] / En_48pass1, P3_LED[3] / En_Defer, P3_LED[2] / En_Forward, VDDD, VSSD P3_LED[1] / Dis_Trunk, P3_LED[0] / LED_MODE[2], P2_LED[3] / LED_MODE[1], P2_LED[2] / LED_MODE[0], P2_LED[1] / MII_MODE[1], P2_LED[0] / MII_MODE[0], P1_LED[3] / En_AutoXover, P1_LED[2] / En_ANEG, P1_LED[1] / En_FCTRL P1_LED[0] / En_BKPRS, VDDD, VSSD P0_LED[3] / Force_Duplex, P0_LED[2] / Force_Speed, P0_LED[1] / En_BRD_CTRL, P0_LED[0] / En_RST_BLNK, LoopLED#,/EnEEPROM VDDD, VSSD, NC, VSSPLL, X1, X2, VDDPLL, NC, IBREF, VDDA, TXON[0], TXOP[0], VSSA, RXIP[0], RXIN[0], Single-chip 9-port 10/100Mbps Switch Controller I I I I I DVDD DGND I/O I/O I/O O I/O I/O I/O I/O DVDD DGND I/O 6 Pin No 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128 Type I/O I I I I I DVDD DGND I/O I/O I/O I/O I/O I/O DVDD DGND I/O I/O I/O I/O I/O I/O DVDD DGND I/O I/O I/O I/O I/O I/O DVDD DGND I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O DVDD DGND I/O I/O I/O I/O I/O DVDD DGND AGND I O AVDD AO AVDD AO AO AGND AI AI Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 5. Pin Descriptions "Type" codes used in the following tables: `A' stands for analog; `D' stands for digital, `I' stands for input; `O' stands for output, `Ipu' stands for input with internal pull-up. Upon reset: defined as a short time after the end of a hardware reset. After reset: defined as the time after the specified "Upon Reset" time. 5.1. Media Connection Pins Table 2. Media Connection Pins Pin Name RXIP[7:0] RXIN[7:0] TXOP[7:0] TXON[7:0] Pin No. 40, 34, 30, 22, 18, 10, 6, 127, 39, 33, 31, 21, 19, 9, 7, 128 42, 36, 28, 24, 16, 12, 4, 125, 43, 37, 27, 25, 15, 13, 3, 124 Type AI Description Differential Receive Data Input shared by 100Base-TX, 10Base-T for connection to a transformer. AO Differential Transmit Data Output shared by 100Base-TX, 10Base-T for connection to a transformer. Default 5.2. MII Port MAC Interface Pins The external device can be either 2.5V or 3.3V compatible depending on the power supplied to VDDIO. The input and input/output pins listed below do not implement an internal pull-high resistor. An external pull-high resistor is required for these floating input pins to reduce power consumption. Table 3. MII Port MAC Interface Pins Pin Name MRXD[3:0] /PTXD[3:0] MRXDV/PTXEN Pin No. 70, 69, 68, 67 Type I 66 I Description For MII MAC mode, these pins are MRXD[3:0], MII receive data nibble. For MII PHY mode, these pins are PTXD[3:0], MII transmit data nibble. For SNI PHY mode, PTXD[0] is serial transmit data. For MII MAC mode, this pin represents MRXDV, MII receive data valid. For MII PHY mode, this pin represents PTXEN, MII transmit enable. For SNI PHY mode, this pin represents PTXEN, transmit enable. Single-chip 9-port 10/100Mbps Switch Controller 7 Default Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name MRXC/PTXC Pin No. 65 Type I/O MCOL/PCOL 64 I/O 61, 60, 59, 58 O MTXEN/PRXDV 57 O MTXC/PRXC 56 I/O MII_MODE[1:0] /P2_LED[1:0] 101, 102 Ipu MII_LNK_STA# 51 Ipu MII_DUP_STA 50 Ipu MII_SPD_STA 49 Ipu MTXD[3:0] /PRXD[3:0] MII_FCTRL_STA 48 Ipu Description Default For MII MAC mode, this pin represents MRXC/MII receive clock (acts as input). For MII/SNI PHY mode, this pin represent PTXC/MII transmit clock (acts as output). For MII MAC mode, this pin represents MCOL, MII collision detect (acts as input). For MII/SNI PHY mode, this pin represents PCOL, MII collision detect (acts as output). Output after reset. For MII MAC mode, these pins are MTXD[3:0], MII transmit data of MAC. For MII PHY mode, these pins are PRXD[3:0], MII receive data of MAC. For SNI PHY mode, PRXD[0] is SNI serial receive data. PRXD[3:1] are unused. For MII MAC mode, this pin represents MTXEN, MII transmit enable. For MII PHY mode, this pin represents PRXDV, MII receive data valid. For SNI PHY mode, this pin represents PRXDV, SNI receive data valid. For MII MAC mode, this pin represents MTXC, MII transmit clock (acts as input). For MII/SNI PHY mode, this pin represents MRXC, MII/SNI receive clock (acts as output). Input upon reset = Select MII port (9th port) operating mode. 11 11=Tristate MII output. 10=MII MAC mode. 01=MII PHY mode. 00=SNI PHY mode. Provides MII port (9th port) Link Status for MAC module at MII 1 MAC/MII PHY/SNI PHY operation mode in real time. This pin sets the link status of the MII port MAC module in real-time. Provides MII port (9th port) duplex status for MAC module at MII 1 MAC/MII PHY/SNI PHY operation mode in real time. 1: MII port operates in full duplex mode 0: MII port operates in half duplex mode Provides MII port (9th port) speed status for MAC module at MII 1 MAC/MII PHY/SNI PHY operation mode in real time. 1: MII port operates at 100Mbps speed 0: MII port operates at 10Mbps speed In an application outlined below, this pin should be left floating: For HomePNA (MII MAC mode), speed is determined by RXC and TXC from PHY of HomePNA running at 1Mbps. For SNI PHY mode, speed is fixed at 10MHz clock rate. Provides MII port (9th port) flow control status for MAC module at MII MAC/MII PHY/SNI PHY operation mode in real time. 1: MII port has flow control ability 0: MII port does not have flow control ability Single-chip 9-port 10/100Mbps Switch Controller 8 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 5.3. Miscellaneous Pins Table 4. Miscellaneous Pins Pin Name X1 Pin No. 118 Type I X2 119 O RESET# 47 I IBREF 122 A NC 45, 46, 116, 121 Description 25MHz crystal input. The clock tolerance is +-50ppm. 25MHz crystal output. Default Active low reset signal. To complete the reset function, this pin must be asserted for at least 10ms. After reset, about 30ms is needed for the RTL8309SB to complete the internal test function and initialization. Note: This pin is a Schmitt input pin. Control transmit output waveform Vpp. This pin should be grounded through a 2.0K ohm resistor. Not Connected - Floating in normal operation. 5.4. Port LED Pins Each port supports four LED pins for status indication. The indicated status of these four LED pins may be changed by setting different values for strapping pin LED_MODE[2:0]. Note 1: All LED statuses are represented as active-low or high depending on input strapping, except Bi-color Link/Act in Bi-color LED mode, whose polarity depends on Bi-color Speed status. Note 2: Those pins are dual function pins: output for LED and input for strapping. Table 5. Port LED Pins Pin Name P0_LED[0] P1_LED[0] P2_LED[0] P3_LED[0] P4_LED[0] P5_LED[0] P6_LED[0] P7_LED[0] Pin No. Type 112, 106, Ipu/O 102, 98, 92, 86, 82, 76 Description Output after reset = used for the 1st LED. Mode 7: Speed (On =100 Mbps, Off =10Mbps) Mode 6: Activity (Flash=Tx or Rx activity) Mode 5: Speed (On =100 Mbps, Off =10Mbps) Mode 4: Collision (Flash=Collision) Mode 3: Reserved for internal use Mode 2: RxAct+10/100 (Flash every 120ms=10Mbps Rx activity, Flash every 43ms = 100Mbps Rx activity). Mode 1: Duplex+Collision (On=Full, Off=Half with no collision, Flash = Collision) Mode 0: Bi-color Speed. Polarity depends on Bi-color Link+Activity LED status. Refer to section 8.3.17 LEDs, page 87, for detailed information. Single-chip 9-port 10/100Mbps Switch Controller 9 Default 1 1 1 1 1 1 1 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name P0_LED[1] P1_LED[1] P2_LED[1] P3_LED[1] P4_LED[1] P5_LED[1] P6_LED[1] P7_LED[1] P0_LED[2] P1_LED[2] P2_LED[2] P3_LED[2] P4_LED[2] P5_LED[2] P6_LED[2] P7_LED[2] P0_LED[3] P1_LED[3] P2_LED[3] P3_LED[3] P4_LED[3] P5_LED[3] P6_LED[3] P7_LED[3] LED_MODE[2] /P3_LED[0] LED_MODE[1] /P2_LED[3] LED_MODE[0] /P2_LED[2] Pin No. 111, 105, 101, 97, 91, 85, 81, 75 Type Description nd Ipu/O Output after reset = used for the 2 LED. Mode 7: Duplex+Collision (On=Full, Off=Half with no collision, Flash = Collision) Mode 6: Speed (On =100 Mbps, Off =10Mbps) Mode 5: Duplex (On=Full, Off=Half) Mode 4: Duplex (On=Full, Off=Half) Mode 3: Duplex+Collision (On=Full, Off=Half with no collision, Flash = Collision) Mode 2: TxAct+10/100 (Flash every 120ms = 10Mbps Tx activity, Flash every 43ms = 100Mbps Tx activity) Mode 1: 10Link+Act (On=Link on 10Mbps, Off=No link on 10Mbps, Flash=10Mbps Tx or Rx activity) Mode 0: Duplex+Collision (On=Full, Off=Half with no collision, Flash = Collision) 110, 104, Ipu/O Output after reset = used for the 3rd LED. Mode 7: Link+Act (On=Link, Off=No link, Flash=Tx or Rx activity) 100, 94, Mode 6: Link (On=Link, Off=No link) 90, 84, Mode 5: Link+Act (On=Link, Off=No link, Flash=Tx or Rx activity) 78, 74, Mode 4: Link+Act+Speed (On=Link, Off=No link, Flash every 120ms=10Mbps activity, flash every 43ms=100Mbps) Mode 3: Link+Act+Speed (On=Link, Off=No link, Flash every 120ms=10Mbps activity, flash every 43ms=100Mbps) Mode 2: Link (On=Link, Off=No link) Mode 1: 100Link+Act (On=Link on 100Mbps, Off=No link on 100Mbps, Flash=100Mbps Tx or Rx activity) Mode 0: Bi-color Speed. Polarity depends on Bi-color Link+Activity LED status. Refer to section 8.3.17 LEDs, page 87, for detailed information. 109, 103, Ipu/O Output after reset = used for the 4th LED. Mode 7: Reserved for internal use 99, 93, Mode 6: Reserved for internal use 89, 83, Mode 5: Reserved for internal use 77, 73 Mode 4: Reserved for internal use Mode 3: 10/100 (On =100 Mbps, Off =10Mbps) Mode 2: Reserved for internal use Mode 1: Reserved for internal use Mode 0: Reserved for internal use 98, I/O Input upon reset = Select LED display mode upon reset. 99, LED_MODE[2:0]=111 -> Mode 7: 100 Speed, Duplex+Collision, Link+Act, Reserved LED_MODE[2:0]=110 -> Mode 6: Activity, Speed, Link, Reserved LED_MODE[2:0]=101 -> Mode 5: Speed, Duplex, Link+Act, Reserved LED_MODE[2:0]=100 -> Mode 4: Collision, Duplex, Link+Act+Speed, Reserved LED_MODE[2:0]=011 -> Mode 3: Reserved, Duplex+Collision, Link+Act+Speed, 10/100 LED_MODE[2:0]=010 -> Mode 2: RxAct+10/100, TxAct+10/100, Link, Reserved LED_MODE[2:0]=001 -> Mode 1: Duplex+Collision, 10Link+Act, 100Link+Act, Reserved. LEDM_ODE[2:0]=000 -> Mode 0: Bi-color Speed, Duplex+Collision, Bi-color Link+Act, Reserved Single-chip 9-port 10/100Mbps Switch Controller 10 Default 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 111 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name Port_LED_LOC /P7_LED[2] LoopLED# /EnEEPROM Pin No. 74 113 Type Description Ipu/O Input upon reset = Per port LED pin location reversed. 1: For designs where LEDs are placed at the opposite side to the phone jack Port 0 LEDs are assigned at pins 109~112 Port 1 LEDs are assigned at pins 103~106 Port 2 LEDs are assigned at pins 99~102 Port 3 LEDs are assigned at pins 93, 94, 97, 98 Port 4 LEDs are assigned at pins 89~92 Port 5 LEDs are assigned at pins 83~86 Port 6 LEDs are assigned at pins 77, 78, 80, 81 Port 7 LEDs are assigned at pins 73~76 0: Suitable for designs where LEDs are placed on the same side as the phone jack Port 0 LEDs are assigned at pins 73~76 Port 1 LEDs are assigned at pins 77, 78, 80, 81 Port 2 LEDs are assigned at pins 83~86 Port 3 LEDs are assigned at pins 89~92 Port 4 LEDs are assigned at pins 93, 94, 97, 98 Port 5 LEDs are assigned at pins 99~102 Port 6 LEDs are assigned at pins 103~106 Port 7 LEDs are assigned at pins 109~112 Ipu/O Output after reset = LoopLED# used for LED. If Loop detection is enabled, this pin indicates whether a Network loop is detected or not. Otherwise, this pin has no function. Note: The LED statuses are represented as active-low or high depending on input strapping. => If Input=1: Output 0=Network loop is detected. 1=No loop. => If Input=0: Output 1=Network loop is detected. 0= No loop. Default 1 1 5.5. Serial EEPROM and SMI Pins Table 6. Serial EEPROM and SMI Pins Pin Name EnEEPROM /LoopLED# Pin No. 113 Type Ipu/O SCL_MDC 54 I/O Description Input upon reset = Enable loading of serial EEPROM upon reset. 1: Enable Serial EEPROM load upon reset 0: Disable Serial EEPROM load upon reset EEPROM Serial Clock or MDC. This pin is three state when pin RESET#=0. When the RTL8309SB detects an EEPROM connected to it, this pin becomes SCL (output) to load the serial EEPROM upon reset. Then the pin changes to MDC (input) after reset. In this case, this pin should be pulled high (VDDIO 2.5V/3.3V) by external register. When the RTL8309SB does not detect an EEPROM connected to it, this pin is MDC (input). In this case, it needs an external pull-high resistor, unless it is floated. Single-chip 9-port 10/100Mbps Switch Controller 11 Default 1 - Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name SDA_MDIO Pin No. 55 Type I/O Description EEPROM Serial Data Input/Output or MDIO. This pin is three state when pin RESET#=0. When the RTL8309SB detects an EEPROM connected to it, this pin becomes SDA (input/output) to load the serial EEPROM upon reset. The pin changes to MDIO (input/output) after reset. When the RTL8309SB does not detect an EEPROM connected to it, this pin is MDIO (input/output). It should be pulled high by an external resistor. Default - 5.6. Strapping Pins Note: All strapping pins are dual function pins: output for LED and input for strapping. The table below covers strapping only. See Port LED Pins, on page 9, for LED pin settings. Table 7. Strapping Pins Pin Name En_ANEG /P1_LED[2] Pin No. 104 Type En_FCTRL /P1_LED[1] 105 Ipu En_BKPRS /P1_LED[0] 106 Ipu Force_Duplex /P0_LED[3] 109 Ipu Force_Speed /P0_LED[2] 110 Ipu Ipu Description Input upon reset = Enable Auto-negotiation function. 1: Enable the auto-negotiation function (NWay mode) and set PHY register 0.12 0: Disable the auto-negotiation function (force mode) and deselect PHY register 0.12 Output after reset = used for LED. Input upon reset = Enable flow control ability in full duplex mode. 1: In NWay mode, this pin sets PHY register 4.10, but the flow control function is finally enabled based on the auto negotiation result. In force mode, this pin will always enable the flow control function 0: Disable the flow control function Output after reset = used for LED. Input upon reset = Enable backpressure ability in half duplex mode. 1: Enable backpressure 0: Disable backpressure Output after reset = used for LED. Force duplex mode. This pin sets PHY Reg.0.8 and influences the contents of PHY Reg.4. 1: Force full duplex if auto-negotiation is disabled 0: Force half duplex if auto-negotiation is disabled Output after reset = used for LED. Force operating speed. This pin sets PHY Reg.0.13 and influences the contents of PHY Reg.4. 1: Force 100Mbps speed if auto-negotiation is disabled 0: Force 10Mbps speed if auto-negotiation is disabled Default 1 1 1 1 1 Output after reset = used for LED. Single-chip 9-port 10/100Mbps Switch Controller 12 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name En_BRD_CTRL /P0_LED[1] Pin No. 111 Type Ipu Description Input upon reset = Disable Broadcast Storm Control. 1: Disable Broadcast Storm Control Default 1 0: Enable Broadcast Storm Control En_RST_BLNK /P0_LED[0] 112 Ipu Output after reset = used for LED. Input upon reset = Enable blinking of LEDs upon reset. 1: Enable power-on LED blinking for diagnosis 0: Disable power-on LED blinking En_AutoXover /P1_LED[3] 103 Ipu Output after reset = used for LED. Input upon reset = Enable Auto crossover detection. 1: Enable auto crossover detection 0: Disable auto crossover detection. MDI only Dis_FC_AtuoOff /P7_LED[3] 73 Ipu En_Forward /P3_LED[2] 94 Ipu En_Defer /P3_LED[3] 93 Ipu En_48pass1 /P4_LED[0] 92 Ipu En_Agrs_Back /P4_LED[1] 91 Ipu Output after reset = used for LED. Disable auto turn off of flow control ability. 1: Disable 0: Enable auto turn off flow control ability on the low priority queue for 1~2 seconds whenever the port receives a high priority frame. The flow control ability will be re-enabled if this port does not receive another high priority frame during this 1~2 second duration Output after reset = used for LED. Input upon reset = Enable forwarding of 802.1D specified reserved group MAC address frames. 1: Forward reserved control packets with DID=01-80-C2-00-00-03 to 01-80-C2-00-00-0F 0: Filter reserved control packets with DID=01-80-C2-00-00-03 to 01-80-C2-00-00-0F Output after reset = used for LED. Input upon reset = Enable carrier sense defering function. 1: Enable carrier sense deferring function for half duplex backpressure 0: Disable carrier sense deferring function for half duplex backpressure Output after reset = used for LED. Enable 48 pass 1 mechanism. 1: 48 pass 1. Continuously collides 48 input packets then passes 1 packet to retain system resources and avoid repeater partition when buffer is full 0: Continuously collides input packets to avoid packet loss when buffer is full Output after reset = used for LED. Input upon reset = Enable aggressive back-off mechanism. 1: Enable more aggressive back-off mechanism in half duplex mode for performance enhancement. The back-off limitation will become 3 in this mode (default is 10) 0: Disable aggressive back-off mechanism in half duplex mode 1 1 1 1 1 1 1 Output after reset = used for LED. Single-chip 9-port 10/100Mbps Switch Controller 13 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name Max_Pkt_Len /P4_LED[2] Pin No. 90 Type Max_Pause_Count /P4_LED[3] 89 Ipu Dis_Trunk /P3_LED[1] 97 Ipu Sel_PortPri[1:0] /P5_LED[1:0] 85, 86 Ipu Dis_VLAN_Pri /P5_LED[2] 84 Ipu Dis_DS_Pri /P5_LED[3] 83 Ipu 81, 82 Ipu QWeight[1:0] /P6_LED[1:0] Ipu Description Input upon reset = Select maximum frame length. 1: 1536 bytes 0: 1552 bytes Output after reset = used for LED. Input upon reset = Select the max Pause frame count during a congested event. 1: Generates maximum of 32 pause frames, even if congestion still exists 0: Continuously generates pause frames until congestion is resolved Output after reset = used for LED. Disable Two Port Trunking function. 1: Disable two port trunking function 0: Port 0 and port 1 are combined as one trunk Output after reset = used for LED. Input upon reset = Select high priority port for port-based priority QoS. 11: Disable port-based priority function 10: Select port 0 as high priority port 01: Select port 2 as high priority port 00: Select port 3 as high priority port Output after reset = used for LED. Input upon reset = Disable 802.1p VLAN tag priority based QoS. 1: Disable 802.1p priority classification for ingress packets on each port 0: Enable 802.1p priority classification for ingress packets on each port. A User priority field in the VLAN tag greater or equal to 4 will be considered a high priority packet Output after reset = used for LED. Input upon reset = Disable Diffserv priority based QoS. 1: Disable diffserv priority classification for ingress packets on each port 0: Enable diffserv priority classification for ingress packets on each port Output after reset = used for LED. Input upon reset = Weighted round robin ratio priority queue. The frame service ratio between the high priority queue and low priority queue is: 11=16:1 10=Always high priority queue first 01=8:1 00=4:1 Default 1 1 1 1 1 1 1 Output after reset = used for LED. Single-chip 9-port 10/100Mbps Switch Controller 14 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Pin Name Dis_VLAN /P6_LED[2] Pin No. 78 Type Ipu Dis_LeakyVLAN /P6_LED[3] 77 Ipu Dis_ARPVLAN /P7_LED[0] 76 Ipu LED_BLNK_TIME /P7_LED[1] 75 Ipu Description Input upon reset = Disable VLAN. 1: Disable VLAN 0: Enable VLAN. The default VLAN membership configuration is MII port overlapped with all the other ports to form 8 individual VLANs. The default membership configuration may be modified by setting internal registers via the SMI interface or EEPROM Output after reset = used for LED. Input upon reset = Disable Leaky VLAN. 1: Disable forwarding of unicast frames to other VLANs 0: Enable forwarding of unicast frames to other VLANs Note: Broadcast and multicast frames adhere to the VLAN configuration. Output after reset = used for LED. Input upon reset = Disable ARP broadcast to all VLANs. 1: Disable broadcast of ARP broadcast packets to all VLANs 0: Enable broadcast of ARP broadcast packets to all VLANs Output after reset = used for LED. Input upon reset = Select blinking speed of activity and collision LED. 1: On 43ms then Off 43ms 0: On 120ms then Off 120ms Note: This pin only affects LEDs that are configured in LED mode 1, 5, and 7. Default 1 1 1 1 Output after reset = used for LED. Single-chip 9-port 10/100Mbps Switch Controller 15 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 5.7. Power Pins Table 8. Power Pins Pin Name VDDD Type P VDDIO Pin No. 52, 71, 79, 87, 95,107, 114 53, 72, 80, 88, 96, 108, 115 62 VSSIO VSSD Description 1.8V digital power. Default G Digital ground. P 2.5/3.3V digital VDD for MII interface. 63 G Digital ground for MII interface. VDDPLL 120 P 1.8V analog power for PLL. VSSPLL 117 G 1.8V analog ground for PLL. 1, 8, 14, 20, 26, 32, 38, 44, 123 2, 5, 11, 17, 23, 29, 35, 41, 126 P 1.8V analog power (Used for transmitters and equalizers). G Analog ground. VDDA VSSA Single-chip 9-port 10/100Mbps Switch Controller 16 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6. EEPROM Register Description 6.1. Global Control Registers 6.1.1. Global Control Register0 Table 9. Global Control Register0 Name EEPROM existence Accept Error disable IEEE 802.3x transmit flow control enable IEEE 802.3x receive flow control enable Byte.bit 0.7 0.6 0.5 0.4 Broadcast input or output drop Aging enable 0.3 Fast aging enable 0.1 Enable ISP MAC Address Translation 0.0 6.1.2. 0.2 Description 1: EEPROM does not exist 0: EEPROM exists 1: Filter bad packets in normal operation 0: Switch all packets including bad ones 1: Invoke transmit flow control based on auto-negotiation result 0: Switch will not enable transmit flow control 1: When the switch receives a pause control frame, it has the ability to stop the next transmission of a normal frame until the timer has expired based on the auto negotiation result 0: Receive flow control not enabled 1: Broadcast input drop is selected 0: Broadcast output drop is selected 1: Enable aging function in the switch 0: Disable aging function in the switch 1: An entry learned in the lookup table will be aged out if it is not updated within an 800s period 0: Disable fast aging function. The normal aging time of the RTL8309SB is around 200~300 seconds 1: Enable ISP MAC Address Translation 0: Disable ISP MAC Address Translation Default 0 1 1 1 1 1 0 0 Global Control Register1 Table 10. Global Control Register1 Name LED Mode Byte.bit 1.7~1.5 Reserved Disable VLAN 1.4 1.3 Disable 802.1Q tag aware VLAN 1.2 Description Default 111 -> Mode 7: Speed, Duplex+Collision, Link+Act, SQI 111 110 -> Mode 6: Activity, Speed, Link, SQI 101 -> Mode 5: Speed, Duplex, Link+Act, SQI 100 -> Mode 4: Collision, Duplex, Link+Act+Speed, SQI 011 -> Mode 3: SQI, Duplex+Collision, Link+Act+Speed,10/100 010 -> Mode 2: RxAct+10/100, TxAct+10/100, Link, SQI 001 -> Mode 1: Duplex+Collision, 10Link+Act, 100Link+Act, SQI 000 -> Mode 0: Duplex+Collision, Bi-color Speed, Bi-color Link+Act, SQI 1 1: Disable VLAN 1 0: Enable VLAN 1: Disable the 802.1Q tagged-VID Aware function 0 0: Use tagged-VID VLAN mapping for tagged frames but still use Port-Based VLAN mapping for priority-tagged and untagged frame Single-chip 9-port 10/100Mbps Switch Controller 17 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Name Disable VLAN member set ingress filtering Disable VLAN tag admit control 6.1.3. Byte.bit 1.1 1.0 Description 1: The switch will not drop the received frame if the ingress port of this packet is not included in the matched VLAN member set 0: The switch will drop the received frame if the ingress port of this packet is not included in the matched VLAN member set 1: The switch accepts all frames received 0: The switch will only accept tagged frames and will drop untagged frames Default 1 1 Global Control Register2 Table 11. Global Control Register2 Name Enable default high priority DiffServ code point Byte.bit 2.7 Reserved 2.6~2.0 6.1.4. Description 1: The default DiffServ code point listed below will be considered a high priority code point if DiffServ priority function is enabled EF - 101110 AF - 001010, 010010, 011010, 100010 Network Control - 111000, 110000 0: The default DiffServ code point will be considered low priority Default 1 1111 111 Global Control Register3 Table 12. Global Control Register3 Name 802.1p base priority Byte.bit 3.7~3.5 Trunking port assignment 3.4 Queue weight 3.3~3.2 Disable IP priority for IP address [A] 3.1 Disable IP priority for IP address [B] 3.0 Description Used to classify priority for incoming 802.1Q packets when 802.1p priority classification is enabled. "User priority" compares against this value. >=: Classify as high priority <: Classify as low priority 1: Combine port 0 and 1 as one trunking port, if trunking is enabled by strapping pin, Dis_Trunk 0: Combine port 6 and 7 as one trunking port, if trunking is enabled by strapping pin, Dis_Trunk The frame service ratio between the high priority queue and low priority queue is: 11=16:1 10=always high priority queue first 01=8:1 00=4:1 1: The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet 0: The switch will not compare the source or destination IP addresses of an incoming packet against the value, IP address [A] AND IP mask [A] 1: The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet 0: The switch will not compare the source and destination IP addresses of an incoming packet against the value, IP address [B] AND IP mask [B] Single-chip 9-port 10/100Mbps Switch Controller 18 Default 100 1 11 0 0 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.1.5. Global Control Register4 Table 13. Global Control Register4 Name Enable Differential Service Code Point [B] Reserved Differential Service Code Point [B] 6.1.6. Byte.bit 4.7 4.6 4.5~4.0 Description 1: If Differential Service Priority is enabled, this bit specifies differential service code point [B] is high priority 0: If Differential Service Priority is enabled, this bit specifies differential service code point [B] is low priority Used to specify a high priority differential service code point B. For example, if these bits are set to "000000", all incoming packets with a TOS field equal to "000000" will be considered high priority packets. Default 0 1 111111 Global Control Register5 Table 14. Global Control Register5 Name Enable Differential Service Code Point [A] Reserved Differential Service Code Point [A] 6.1.7. Byte.bit 5.7 5.6 5.5~5.0 Description 1: If Differential Service Priority is enabled, this bit specifies differential service code point [A] is high priority 0: If Differential Service Priority is enabled, this bit specifies differential service code point [A] is low priority Used to specify a high priority differential service code point A. For example, if these bits are set to "111111", all incoming packets with a TOS field equal to "000000" will be considered high priority packets. Default 0 1 111111 Global Control Register6 Table 15. Global Control Register6 Name Reserved 6.1.8. Byte.bit 6.7~6.0 Description Default 0000 0001 Global Control Register7 Table 16. Global Control Register7 Name Enable drop for 48 pass 1 Reserved TX IPG compensation Disable loop detection Reserved Lookup table accessible enable Reserved Byte.bit 7.7 7.6 7.5 7.4 7.3 7.2 Description 1: Enable drop packet when SRAM full for 48 pass 1 0: Disable drop packet when SRAM full for 48 pass 1. This will result in SRAM run out 1 1 1: 90ppm TX IPG compensation 0: 65ppm TX IPG compensation 1: Disable loop detection function 0: Enable loop detection function 1 1: Lookup table is accessible via indirect access registers 0: Lookup table is not accessible 7.1~7.0 Single-chip 9-port 10/100Mbps Switch Controller Default 1 1 0 11 19 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2. Port 0~7 Control Pins 6.2.1. Port 0 Control 0 Table 17. Port 0 Control 0 Name Reserved Speed and Duplex ability Byte.bit 8.7~8.6 8.5~ 8.4 Description In auto negotiation mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Default 11 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Reserved Backpressure enable VLAN tag insertion and removal 6.2.2. 8.3 8.2 8.1~8.0 1: Enable port 0 half duplex backpressure 0: Disable port 0 half duplex backpressure 11=Do not insert or remove VLAN tags to/from packet. 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. 1 1 11 Port 0 Control 1 Table 18. Port 0 Control 1 Name Reserved Local loopback Byte.bit 9.7~9.6 9.5 Null VID replacement Discard Non PVID packets 9.4 Disable 802.1p priority Disable Diffserv priority Disable portbased priority 9.2 9.3 9.1 9.0 Description 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0: Normal operation 1: The switch will replace a NULL VID with a port VID (12 bits) 0: No replacement for a NULL VID 1: If the received packets are tagged, the switch will discard packets whose VID does not match the ingress port's PVID 0: No packets will be dropped 1: Disable 802.1p priority classification for ingress packets on port 0 0: Enable 802.1p priority classification on port 0 1: Disable Diffserv priority classification for ingress packets on port 0 0: Enable Diffserv priority classification on Port 0 1: Disable port priority function 0: Enable port priority function. Ingress packets from port 0 will be classified as high priority Single-chip 9-port 10/100Mbps Switch Controller 20 Default 11 0 0 0 1 1 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.3. Port 0 Control 2 Table 19. Port 0 Control 2 Name Reserved 6.2.4. Byte.bit 10.7~ 10.0 Description Default 1111 1000 Port 0 Control 3 Table 20. Port 0 Control 3 Name Reserved Transmission enable Reception enable Byte.bit 11.7~ 11.4 11.3 11.2 Learning enable 11.1 Reserved 11.0 VLAN ID [A] membership Bit [7:0] 6.2.5. 12.7~ 12.0 Description Default 1111 1: Enable packet transmission on port 0 0: Disable packet transmission on port 0 1: Enable packet reception on port 0 0: Disable packet reception on port 0 1: Enable switch address learning capability 0: Disable switch address learning capability 1 1 1 1 VLAN Entry [A] This register along with byte 13.0 forms a 9-bit field that specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 0000 0001 Port 0 Control 4 Table 21. Port 0 Control 4 Name Port 0 VLAN index [3:0] Reserved VLAN ID [A] membership Bit [8] VLAN ID [A] [7:0] Reserved VLAN ID [A] [11:8] Byte.bit 13.7~ 13.4 13.3~ 13.1 13.0 14.7~ 14.0 15.7~ 15.4 15.3~ 15.0 Description In a port-based VLAN configuration, this register indexes port 0's `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 0 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. Default 0000 111 This register along with byte 12.7~12.0 forms a 9-bit field that specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [A] This register along with byte 15.3~15.0 defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN A. This register along with byte 14.7~14.0 defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN A. Single-chip 9-port 10/100Mbps Switch Controller 21 1 0000 0000 1111 0000 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.6. IP Address Table 22. IP Address Name Byte.bit IP Address [A] [16:23] 16.7~ 16.0 IP Address [A] [31:24] 17.7~ 17.0 IP Address [A] [7:0] 18.7~ 18.0 IP Address [A] [15:8] 19.7~ 19.0 IP Address [B] [16:23] 20.7~ 20.0 IP Address [B] [31:24] 21.7~ 21.0 IP Address [B] [7:0] 22.7~ 22.0 IP Address [B] [15:8] 23.7~ 23.0 Description Default IP Address [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Address [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Address [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Address [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Address [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. IP Address [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. IP Address [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. IP Address [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. Single-chip 9-port 10/100Mbps Switch Controller 22 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.7. Port 1 Control 0 Table 23. Port 1 Control 0 Name Reserved Speed and Duplex ability Byte.bit 24.7~ 24.6 24.5~ 24.4 Default 11 Description In auto negotiation mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Reserved Backpressure enable VLAN tag insertion and removal 6.2.8. 24.3 24.2 24.1~ 24.0 1: Enable port 1 half duplex backpressure 0: Disable port 1 half duplex backpressure 11=Do not insert or remove VLAN tags to/from packets. 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. 1 1 11 Port 1 Control 1 Table 24. Port 1 Control 1 Name Reserved Local loopback Null VID replacement Discard Non PVID packets Disable 802.1p priority Disable Diffserv priority Disable portbased priority Byte.bit Description 25.7 ~25.6 25.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0: Normal operation 25.4 1: The switch will replace a NULL VID with a port VID (12 bits) 0: No replacement for a NULL VID 25.3 1: If the received packets are tagged, the switch will discard packets whose VID does not match the ingress port's PVID 0: No packets will be dropped 25.2 1: Disable 802.1p priority classification for ingress packets on port 1 0: Enable 802.1p priority classification 25.1 1: Disable Diffserv priority classification for ingress packets on port 1 0: Enable Diffserv priority classification 25.0 1: Disable port priority function 0: Enable port priority function. Ingress packets from port 1 will be classified as high priority Single-chip 9-port 10/100Mbps Switch Controller 23 Default 11 0 0 0 1 1 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.9. Port 1 Control 2 Table 25. Port 1 Control 2 Name Reserved 6.2.10. Byte.bit Description 26.7~ 26.0 Default 1111 1000 Port 1 Control 3 Table 26. Port 1 Control 3 Name Reserved Byte.bit Description 27.7~ 27.4 Transmission 27.3 1: Enable packet transmission on port 1 enable 0: Disable packet transmission on port 1 Reception enable 27.2 1: Enable packet reception on port 1 0: Disable packet reception on port 1 Learning enable 27.1 1: Enable switch address learning capability 0: Disable switch address learning capability Reserved 27.0 VLAN Entry [B] VLAN ID [B] 28.7~ This register along with byte 29.0 forms a 9-bit field that specifies which membership Bit 28.0 ports are members of the VLAN. If a destination address look up fails, [7:0] packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 6.2.11. Default 1111 1 1 1 1 0000 0010 Port 1 Control 4 Table 27. Port 1 Control 4 Name Port 1 VLAN index [3:0] Reserved VLAN ID [B] membership Bit [8] VLAN ID [B] [7:0] Reserved VLAN ID [B] [11:8] Byte.bit Description 29.7~ In a port-based VLAN configuration, this register indexes port 1's `Port 29.4 VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 1 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 29.3~ 29.1 29.0 This register along with byte 28.7~28.0 forms a 9-bit field that specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [B] 30.7~ This register along with byte 31.3~31.0 defines the IEEE 802.1Q 12-bit 30.0 VLAN identifier of VLAN B. 31.7~ 31.4 31.3~ This register along with byte 30.7~30.0 defines the IEEE 802.1Q 12-bit 31.0 VLAN identifier of VLAN B. Single-chip 9-port 10/100Mbps Switch Controller 24 Default 0001 111 1 0000 0001 1111 0000 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.12. IP Mask Table 28. IP Mask Name Byte.bit Description IP Mask [A] [16:23] 32.7~ 32.0 IP Mask [A] [31:24] 33.7~ 33.0 IP Mask [A] [7:0] 34.7~ 34.0 IP Mask [A] [15:8] 35.7~ 35.0 IP Mask [B] [16:23] 36.7~ 36.0 IP Mask [B] [31:24] 37.7~ 37.0 IP Mask [B] [7:0] 38.7~ 38.0 IP Mask [B] [15:8] 39.7~ 39.0 6.2.13. Default IP Mask [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Mask [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Mask [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Mask [A] If IP priority for IP address [A] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. IP Mask [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. IP Mask [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. IP Mask [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. IP Mask [B] If IP priority for IP address [B] is enabled, the switch will compare the source IP address of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet. 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff Port 2 Control 0 Table 29. Port 2 Control 0 Name Reserved Speed and Duplex ability Byte.bit Description 40.7 ~40.6 40.5~ In auto negotiation mode: 40.4 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Default 11 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Single-chip 9-port 10/100Mbps Switch Controller 25 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Name Reserved Backpressure enable VLAN tag insertion and removal 6.2.14. Byte.bit Description 40.3 40.2 1: Enable port 2 half duplex backpressure 0: Disable port 2 half duplex backpressure 40.1~ 11=Do not insert or remove VLAN tags to/from packets. 40.0 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace VID with PVID for tagged packets and insert PVID to nontagged packets. Default 1 1 11 Port 2 Control 1 Table 30. Port 2 Control 1 Name Reserved Local loopback Null VID replacement Discard Non PVID packets Disable 802.1p priority Disable Diffserv priority Disable portbased priority 6.2.15. Byte.bit Description Default 41.7~ 11 41.6 41.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0 0: Normal operation 41.4 1: The switch will replace a NULL VID with a port VID (12 bits) 0 0: No replacement for a NULL VID 41.3 1: If the received packets are tagged, the switch will discard packets whose 0 VID does not match the ingress port's PVID 0: No packets will be dropped 41.2 1: Disable 802.1p priority classification for ingress packets on port 2 1 0: Enable 802.1p priority classification 41.1 1: Disable Diffserv priority classification for ingress packets on port 2 1 0: Enable Diffserv priority classification 41.0 1: Disable port priority function 1 0: Enable port priority function. Ingress packets from port 2 will be classified as high priority Port 2 Control 2 Table 31. Port 2 Control 2 Name Reserved 6.2.16. Byte.bit Description 42.7~ 42.0 Default 1111 1000 Port 2 Control 3 Table 32. Port 2 Control 3 Name Reserved Byte.bit Description 43.7~ 43.4 Transmission 43.3 1: Enable packet transmission on port 2 enable 0: Disable packet transmission on port 2 Reception enable 43.2 1: Enable packet reception on port 2 0: Disable packet reception on port 2 Learning enable 43.1 1: Enable switch address learning capability 0: Disable switch address learning capability Reserved 43.0 Single-chip 9-port 10/100Mbps Switch Controller 26 Default 1111 1 1 1 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Name Byte.bit Description VLAN ID [C] membership Bit [7:0] 6.2.17. 44.7~ 44.0 Default VLAN Entry [C] This register along with byte 45.0 forms a 9-bit field that specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 0000 0100 Port 2 Control 4 Table 33. Port 2 Control 4 Name Port 2 VLAN index [3:0] Reserved VLAN ID [C] membership Bit [8] VLAN ID [C] [7:0] Reserved VLAN ID [C] [11:8] 6.2.18. Byte.bit Description Default 45.7~ In a port-based VLAN configuration, this register indexes port 2's `Port 0010 45.4 VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 2 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 45.3~ 111 45.1 45.0 This register along with byte 44.7~44.0 forms a 9-bit field that specifies 1 which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [C] 46.7~ This register along with byte 47.3~47.0 defines the IEEE 802.1Q 12-bit 0000 46.0 VLAN identifier of VLAN C. 0010 47.7~ 1111 47.4 47.3~ This register along with byte 46.7~46.0 defines the IEEE 802.1Q 12-bit 0000 47.0 VLAN identifier of VLAN C. Switch MAC Address The Switch MAC address is used as the source address in MAC pause control frames. Table 34. Switch MAC Address Switch MAC Address [47:40] Switch MAC Address [39:32] Switch MAC Address [31:24] Switch MAC Address [23:16] Switch MAC Address [15:8] Switch MAC Address [7:0] 48.7~ 48.0 49.7~ 49.0 50.7~ 50.0 51.7~ 51.0 52.7~ 52.0 53.7~ 53.0 Switch MAC Address Switch MAC Address Byte 5. 0x52 Switch MAC Address Byte 4. 0x54 Switch MAC Address Byte 3. 0x4C Switch MAC Address Byte 2. 0x83 Switch MAC Address Byte 1. 0x09 Switch MAC Address Byte 0. 0xB0 Single-chip 9-port 10/100Mbps Switch Controller 27 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.19. Port 3 Control 0 Table 35. Port 3 Control 0 Name Reserved Speed and Duplex ability Byte.bit Description 54.7~ 54.6 54.5~ In auto negotiation mode: 54.4 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Default 11 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Reserved Backpressure enable VLAN tag insertion and removal 6.2.20. 54.3 54.2 54.1~ 54.0 1: Enable port 3 half duplex backpressure. 0: Disable port 3 half duplex backpressure. 11=Do not insert or remove VLAN tags to/from packets. 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. 1 1 11 Port 3 Control 1 Table 36. Port 3 Control 1 Name Reserved Local loopback Null VID replacement Discard Non PVID packets Disable 802.1p priority Disable Diffserv priority Disable portbased priority Byte.bit Description Default 55.7~ 11 55.6 55.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0 0: Normal operation 55.4 1: The switch will replace a NULL VID with a port VID (12 bits) 0 0: No replacement for a NULL VID 55.3 1: If the received packets are tagged, the switch will discard packets whose 0 VID does not match the ingress port's PVID 0: No packets will be dropped 55.2 1: Disable 802.1p priority classification for ingress packets on port 3 1 0: Enable 802.1p priority classification 55.1 1: Disable Diffserv priority classification for ingress packets on port 3 1 0: Enable Diffserv priority classification 55.0 1: Disable port priority function 1 0: Enable port priority function. Ingress packets from port 3 will be classified as high priority Single-chip 9-port 10/100Mbps Switch Controller 28 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.21. Port 3 Control 2 Table 37. Port 3 Control 2 Name Reserved 6.2.22. Byte.bit Description 56.7~ 56.0 Default 1111 1000 Port 3 Control 3 Table 38. Port 3 Control 3 Name Reserved Transmission enable Reception enable Byte.bit 57.7~ 57.4 57.3 57.2 Learning enable 57.1 Reserved 57.0 VLAN ID [D] membership Bit [7:0] 6.2.23. 58.7~ 58.0 Default 1111 Description 1: Enable packet transmission on port 3 0: Disable packet transmission on port 3 1: Enable packet reception on port 3 0: Disable packet reception on port 3 1: Enable switch address learning capability 0: Disable switch address learning capability 1 1 1 1 VLAN Entry [D] This register along with byte 59.0 forms a 9-bit field that specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 0000 1000 Port 3 Control 4 Table 39. Port 3 Control 4 Name Port 3 VLAN index [3:0] Reserved VLAN ID [D] membership Bit [8] VLAN ID [D] [7:0] Reserved VLAN ID [D] [11:8] Byte.bit Description Default 59.7~ In a port-based VLAN configuration, this register indexes port 3's `Port 0011 59.4 VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 3 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 59.3~ 111 59.1 59.0 This register along with byte 58.7~58.0 forms a 9-bit field that specifies 1 which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [D] 60.7~ This register along with byte 61.3~61.0 defines the IEEE 802.1Q 12-bit 0000 60.0 VLAN identifier of VLAN D. 0011 61.7~ 1111 61.4 61.3~ This register along with byte 60.7~60.0 defines the IEEE 802.1Q 12-bit 0000 61.0 VLAN identifier of VLAN D. Single-chip 9-port 10/100Mbps Switch Controller 29 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.2.24. ISP MAC Address The ISP MAC address is used as the source address in MAC address translation. Table 40. ISP MAC Address Name ISP MAC Address [47:40] ISP MAC Address [39:32] ISP MAC Address [31:24] ISP MAC Address [23:16] ISP MAC Address [15:8] ISP MAC Address [7:0] 6.2.25. Byte.bit 62.7~62.0 63.7~63.0 64.7~64.0 65.7~65.0 66.7~66.0 67.7~67.0 Description ISP MAC address byte 5. ISP MAC address byte 4. ISP MAC address byte 3. ISP MAC address byte 2. ISP MAC address byte 1. ISP MAC address byte 0. Default 0x05 0x42 0x2F 0x21 0x91 0x5C Port 4 Control 0 Table 41. Port 4 Control 0 Name Reserved Speed and Duplex ability Byte.bit Description 68.7~ 68.6 68.5~ In auto negotiation mode: 68.4 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Default 11 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Reserved Backpressure enable VLAN tag insertion and removal 6.2.26. 68.3 68.2 68.1~ 68.0 1: Enable port 4 half duplex backpressure 0: Disable port 4 half duplex backpressure 11=Do not insert or remove VLAN tags to/from packet. 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. 1 1 11 Port 4 Control 1 Table 42. Port 4 Control 1 Name Reserved Local loopback Null VID replacement Discard Non PVID packets Disable 802.1p priority Byte.bit Description 69.7~ 68,6 69.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0: Normal operation 69.4 1: The switch will replace a NULL VID with a port VID (12 bits) 0: No replacement for a NULL VID 69.3 1: If the received packets are tagged, the switch will discard packets whose VID does not match the ingress port's PVID 0: No packets will be dropped 69.2 1: Disable 802.1p priority classification for ingress packets on port 4 0: Enable 802.1p priority classification Single-chip 9-port 10/100Mbps Switch Controller 30 Default 11 0 0 0 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Name Disable Diffserv priority Disable portbased priority 6.2.27. Byte.bit Description 69.1 1: Disable Diffserv priority classification for ingress packets on port 4 0: Enable Diffserv priority classification 69.0 1: Disable port priority function 0: Enable port priority function. Ingress packets on port 4 will be classified as high priority Default 1 1 Port 4 Control 2 Table 43. Port 4 Control 2 Name Reserved 6.2.28. Byte.bit Description 70.7~ 70.0 Default 1111 1000 Port 4 Control 3 Table 44. Port 4 Control 3 Name Reserved Byte.bit Description 71.7~ 71.4 Transmission 71.3 1: Enable packet transmission on port 4 enable 0: Disable packet transmission on port 4 Reception enable 71.2 1: Enable packet reception on port 4 0: Disable packet reception on port 4 Learning enable 71.1 1: Enable switch address learning capability 0: Disable switch address learning capability Reserved 71.0 VLAN Entry [E] VLAN ID [E] 72.7~ This register along with byte 73.0 forms a 9-bit field that specifies which membership 72.0 ports are members of the VLAN. If a destination address look up fails, Bit[7:0] packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 6.2.29. Default 1111 1 1 1 1 0001 0000 Port 4 Control 4 Table 45. Port 4 Control 4 Name Port 4 VLAN index [3:0] Reserved VLAN ID [E] membership Bit[8] Byte.bit Description Default 73.7~ In a port-based VLAN configuration, this register indexes port 4's `Port 0100 73.4 VLAN Membership', which could be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 4 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 73.3~ 111 73.1 73.0 This register along with byte 72.7~72.0 forms a 9-bit field that specifies 1 which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Single-chip 9-port 10/100Mbps Switch Controller 31 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Name Byte.bit Description VLAN ID [E] [7:0] Reserved VLAN ID [E] [11:8] 74.7~ 74.0 75.7~ 75.4 75.3~ 75.0 Default VLAN Entry [E] This register along with byte 75.3~75.0 defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN E. This register along with byte 74.7~74.0 defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN E. 0000 0100 1111 0000 6.3. MII Port Control Pins 6.3.1. MII Port Control 0 Table 46. MII Port Control 0 Name Reserved VLAN tag insertion and removal 6.3.2. Byte.bit Description 76.7~ 76.2 76.1~ 11=Do not insert or remove VLAN tags to/from packets. 76.0 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. Default 1111 11 11 MII Port Control 1 Table 47. MII Port Control 1 Name Byte.bit Description Default Transmission 77.7 1: Enable packet transmission on MII interface 1 enable 0: Disable packet transmission on MII interface Reception enable 77.6 1: Enable packet reception on MII interface 1 0: Disable packet reception on MII interface Learning enable 77.5 1: Enable switch address learning capability 1 0: Disable switch address learning capability Enable MII 77.4 1: Enable local loop back function. The switch will only forward local and 0 loopback broadcast packets from the input of MII RX to the output of MII TX but drop unicast packets from the input of MII RX. The other ports still can forward packets to MII port 0: Disable local loop back function Disable 802.1p 77.3 1: Disable 802.1p priority classification for ingress packets on MII port 1 priority 0: Enable 802.1p priority classification Disable Diffserv 77.2 1: Disable Diffserv priority classification for ingress packets on MII port 1 priority 0: Enable Diffserv priority classification Disable port77.1 1: Disable port priority function 1 based priority 0: Enable port priority function. Ingress packets from the MII port will be classified as high priority Reserved 77.0 0 VLAN Entry [I] VLAN ID [I] 78.7~ This register along with byte 79.0 forms a 9-bit field that specifies which 1111 membership Bit 78.0 ports are members of the VLAN. If a destination address look up fails, 1111 [7:0] packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Single-chip 9-port 10/100Mbps Switch Controller 32 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.3.3. MII Port Control 2 Table 48. MII Port Control 2 Name Null VID replacement Discard Non PVID packets Reserved Port 8 VLAN index [3:0] VLAN ID [I] membership Bit [8] VLAN ID [I] [7:0] Reserved VLAN ID [I] [11:8] 6.3.4. Byte.bit Description Default 79.7 1: The switch will replace a NULL VID with a port VID (12 bits) 0 0: No replacement for a NULL VID 79.6 1: If the received packets are tagged, the switch will discard packets with a 0 VID that does not match the ingress port default VID, which is indexed by port 8's "Port-based VLAN index" 0: No packets will be dropped 79.5 1 79.4~ In a port-based VLAN configuration, this register indexes port 8's `Port 1000 79.1 VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 8 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 79.0 This register along with byte 78.7~78.0 forms a 9-bit field that specifies 1 which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [I] 80.7~ This register along with byte 81.3~81.0 defines the IEEE 802.1Q 12-bit 0000 80.0 VLAN identifier of VLAN I. 1000 81.7~ 1111 81.4 81.3~ This register along with byte 80.7~80.0 defines the IEEE 802.1Q 12-bit 0000 81.0 VLAN identifier of VLAN I. CPU Port and WAN Port Table 49. CPU Port and WAN Port Name WAN Port CPU Port Byte.bit Description 82.7~ Specifies the WAN port on the RTL8309SB. 82.4 1000=MII Port is WAN Port 0111=Port 7 is WAN Port 0110=Port 6 is WAN Port 0101=Port 5 is WAN Port 0100=Port 4 is WAN Port 0011=Port 3 is WAN Port 0010=Port 2 is WAN Port 0001=Port 1 is WAN Port 0000=Port 0 is WAN Port 82.3~ Specifies the CPU port on the RTL8309SB. 82.0 1000=MII Port is CPU Port 0111=Port 7 is CPU Port 0110=Port 6 is CPU Port 0101=Port 5 is CPU Port 0100=Port 4 is CPU Port 0011=Port 3 is CPU Port 0010=Port 2 is CPU Port 0001=Port 1 is CPU Port 0000=Port 0 is CPU Port Single-chip 9-port 10/100Mbps Switch Controller 33 Default 0111 0000 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.4. Port 5~7 Control Pins 6.4.1. Port 5 Control 0 Table 50. Port 5 Control 0 Name Reserved Speed and Duplex ability Reserved Backpressure enable VLAN tag insertion and removal 6.4.2. Byte.bit Description 83.7~ 83.6 83.5~ In auto negotiation mode: 83.4 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 83.3 83.2 1: Enable port 5 half duplex backpressure 0: Disable port 5 half duplex backpressure 83.1~ 11=Do not insert or remove VLAN tags to/from packet. 83.0 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. Default 11 11 1 1 11 Port 5 Control 1 Table 51. Port 5 Control 1 Name Reserved Local loopback Null VID replacement Discard Non PVID packets Disable 802.1p priority Disable Diffserv priority Disable portbased priority Byte.bit Description Default 84.7~ 11 84.6 84.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0 0: Normal operation 84.4 1: The switch will replace a NULL VID with a port VID (12 bits) 0 0: No replacement for a NULL VID 84.3 1: If the received packets are tagged, the switch will discard packets whose 0 VID does not match the ingress port's PVID 0: No packets will be dropped 84.2 1: Disable 802.1p priority classification for ingress packets on port 5 1 0: Enable 802.1p priority classification 84.1 1: Disable Diffserv priority classification for ingress packets on port 5 1 0: Enable Diffserv priority classification 84.0 1: Disable port priority function 1 0: Enable port priority function. Ingress packets from port 5 will be classified as high priority Single-chip 9-port 10/100Mbps Switch Controller 34 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.4.3. Port 5 Control 2 Table 52. Port 5 Control 2 Name Reserved 6.4.4. Byte.bit Description 85.7~ 85.0 Default 1111 1000 Port 5 Control 3 Table 53. Port 5 Control 3 Name Reserved Byte.bit Description 86.7~ 86.4 Transmission 86.3 1: Enable packet transmission on port 5 enable 0: Disable packet transmission on port 5 Reception enable 86.2 1: Enable packet reception on port 5 0: Disable packet reception on port 5 Learning enable 86.1 1: Enable switch address learning capability 0: Disable switch address learning capability Reserved 86.0 VLAN Entry [F] VLAN ID [F] 87.7~ This register, along with byte 88.0, forms a 9-bit field that specifies which membership Bit 87.0 ports are members of the VLAN. If a destination address look up fails, [7:0] packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 6.4.5. Default 1111 1 1 1 1 0010 0000 Port 5 Control 4 Table 54. Port 5 Control 4 Name Port 5 VLAN index [3:0] Byte.bit 88.7~88.4 Reserved VLAN ID [F] membership Bit [8] 88.3~88.1 88.0 VLAN ID [F] [7:0] 89.7~89.0 Reserved VLAN ID [F] [11:8] 90.7~90.4 90.3~90.0 Description Default In a port-based VLAN configuration, this register indexes port 5's 0101 `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 5 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 111 This register along with byte 87.7~87.0 forms a 9-bit field that 1 specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [F] This register along with byte 90.3~90.0 defines the IEEE 802.1Q 120000 bit VLAN identifier of VLAN F. 0101 1111 This register along with byte 89.7~89.0 defines the IEEE 802.1Q 120000 bit VLAN identifier of VLAN F. Single-chip 9-port 10/100Mbps Switch Controller 35 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.4.6. Port 6 Control 0 Table 55. Port 6 Control 0 Name Reserved Speed and Duplex ability Byte.bit 91.7~91.6 91.5~91.4 Description In auto negotiation mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Default 11 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Reserved Backpressure enable 91.3 91.2 VLAN tag insertion and removal 91.1~91.0 6.4.7. 1: Enable port 6 half duplex backpressure 0: Disable port 6 half duplex backpressure 11=Do not insert or remove VLAN tags to/from packet. 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00=Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. 1 1 11 Port 6 Control 1 Table 56. Port 6 Control 1 Name Reserved Local loopback Byte.bit Description 92.7~92.6 92.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0: Normal operation Null VID 92.4 1: The switch will replace a NULL VID with a port VID (12 bits) replacement 0: No replacement for a NULL VID Discard Non 92.3 1: If the received packets are tagged, the switch will discard packets PVID packets whose VID does not match the ingress port's PVID 0: No packets will be dropped Disable 802.1p 92.2 1: Disable 802.1p priority classification for ingress packets on port 6 priority 0: Enable 802.1p priority classification Disable Diffserv 92.1 1: Disable Diffserv priority classification for ingress packets on port 6 priority 0: Enable Diffserv priority classification Disable port-based 92.0 1: Disable port priority function priority 0: Enable port priority function. Ingress packets from port 6 will be classified as high priority 6.4.8. Default 11 0 0 0 1 1 1 Port 6 Control 2 Table 57. Port 6 Control 2 Name Reserved Byte.bit Description 93.7~93.0 Single-chip 9-port 10/100Mbps Switch Controller Default 1111 1000 36 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.4.9. Port 6 Control 3 Table 58. Port 6 Control 3 Name Byte.bit Reserved 94.7~94.4 Transmission enable 94.3 Reception enable 94.2 Learning enable 94.1 Reserved 94.0 VLAN ID [G] membership Bit [7:0] 6.4.10. 95.7~95.0 Description Default 1111 1 1: Enable packet transmission on port 6 0: Disable packet transmission on port 6 1: Enable packet reception on port 6 0: Disable packet reception on port 6 1: Enable switch address learning capability 0: Disable switch address learning capability 1 1 0 VLAN Entry [G] This register along with byte 96.0 forms a 9-bit field that specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 0100 0000 Port 6 Control 4 Table 59. Port 6 Control 4 Name Port 6 VLAN index [3:0] Byte.bit 96.7~96.4 Reserved VLAN ID [G] membership Bit [8] 96.3~96.1 96.0 VLAN ID [G] [7:0] 97.7~97.0 Reserved VLAN ID [G] [11:8] 98.7~98.4 98.3~98.0 Description Default In a port-based VLAN configuration, this register indexes port 6's 0110 `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 6 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 111 This register along with byte 95.7~95.0 forms a 9-bit field that 1 specifies which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [G] This register along with byte 98.3~98.0 defines the IEEE 802.1Q 120000 bit VLAN identifier of VLAN G. 0110 1111 This register along with byte 97.7~97.0 defines the IEEE 802.1Q 120000 bit VLAN identifier of VLAN C. Single-chip 9-port 10/100Mbps Switch Controller 37 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.4.11. Port 7 Control 0 Table 60. Port 7 Control 0 Name Reserved Speed and Duplex ability Byte.bit 99.7~99.6 99.5~99.4 Description In auto negotiation mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=1, 4.6=1, 4.5=1 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=1, 4.5=1 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=1 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Default 11 11 In Force mode: 11=MII Reg0.13=1, 0.8=1, 4.8=1, 4.7=0, 4.6=0, 4.5=0 10=MII Reg0.13=1, 0.8=0, 4.8=0, 4.7=1, 4.6=0, 4.5=0 01=MII Reg0.13=0, 0.8=1, 4.8=0, 4.7=0, 4.6=1, 4.5=0 00=MII Reg0.13=0, 0.8=0, 4.8=0, 4.7=0, 4.6=0, 4.5=1 Reserved Backpressure enable 99.3 99.2 VLAN tag insertion and removal 99.1~99.0 6.4.12. 1: Enable port 7 half duplex backpressure 0: Disable port 7 half duplex backpressure 11=Do not insert or remove VLAN tags to/from packet. 10=Insert PVID to non-tagged packets. 01=Remove tag from tagged packets. 00= Replace the VID with a PVID for tagged packets and insert a PVID to non-tagged packets. 1 1 11 Port 7 Control 1 Table 61. Port 7 Control 1 Name Reserved Local loopback Null VID replacement Discard Non PVID packets Disable 802.1p priority Disable Diffserv priority Disable port-based priority 6.4.13. Byte.bit Description Default 100.7~100.6 11 100.5 1: Perform `local loopback', i.e. loop back MAC's RX back to TX 0 0: Normal operation 100.4 1: The switch will replace a NULL VID with a port VID (12 bits) 0 0: No replacement for a NULL VID 100.3 1: If the received packets are tagged, the switch will discard packets 0 whose VID does not match ingress port's PVID 0: No packets will be dropped 100.2 1: Disable 802.1p priority classification for ingress packets on port 7 1 0: Enable 802.1p priority classification 100.1 1: Disable Diffserv priority classification for ingress packets on port 7 1 0: Enable Diffserv priority classification 100.0 1: Disable port priority function 1 0: Enable port priority function. Ingress packets from port 7 will be classified as high priority Port 7 Control 2 Table 62. Port 7 Control 2 Name Reserved Byte.bit Description 101.7~ 101.0 Single-chip 9-port 10/100Mbps Switch Controller Default 1111 1000 38 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 6.4.14. Port 7 Control 3 Table 63. Port 7 Control 3 Name Reserved Byte.bit Description 102.7~ 102.4 Transmission 102.3 1: Enable packet transmission on port 7 enable 0: Disable packet transmission on port 7 Reception enable 102.2 1: Enable packet reception on port 7 0: Disable packet reception on port 7 Learning enable 102.1 1: Enable switch address learning capability 0: Disable switch address learning capability Reserved 102.0 VLAN Entry [H] VLAN ID [H] 103.7~ This register along with byte 104.0 forms a 9-bit field that specifies which membership Bit 103.0 ports are members of the VLAN. If a destination address look up fails, [7:0] packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. 6.4.15. Default 1111 1 1 1 1 1000 0000 Port 7 Control 4 Table 64. Port 7 Control 4 Name Port 7 VLAN index [3:0] Reserved VLAN ID [H] membership Bit [8] VLAN ID [H] [7:0] Reserved VLAN ID [H] [11:8] Byte.bit Description Default 104.7~ In a port-based VLAN configuration, this register indexes port 7's `Port 0111 104.4 VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to "VLAN ID [I] Membership". Port 7 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 104.3~ 111 104.1 104.0 This register along with byte 103.7~103.0 forms a 9-bit field that specifies 1 which ports are members of the VLAN. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. VLAN Entry [H] 105.7~ This register along with byte 106.3~106.0 defines the IEEE 802.1Q 12-bit 0000 105.0 VLAN identifier of VLAN H. 0111 106.7~ 1111 106.4 106.3~ This register along with byte 105.7~105.0 defines the IEEE 802.1Q 12-bit 0000 106.0 VLAN identifier of VLAN H. Single-chip 9-port 10/100Mbps Switch Controller 39 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7. PHY Registers Description "Mode" codes used in the following tables: RO Read Only LH Latch High until clear RW Read/Write SC Self Clearing LL Latch Low until clear 7.1. PHY 0 Registers 7.1.1. PHY 0 Register 0: Control Table 65. PHY 0 Register 0: Control Reg.bit 0.15 0.14 Name Reset Loopback (digital loopback) Mode RW/SC RW 0.13 Speed Select RW 0.12 Auto Negotiation Enable RW 0.11 Power Down RW 0.10 Isolate RW 0.9 Restart Auto Negotiation Duplex Mode 0.8 0.[7:0] RW/SC RW Description 1: PHY reset. This bit is self-clearing. 1: Enable loopback. This will loopback TXD to RXD and ignore all activity on the cable media 0: Normal operation 1: 100Mbps 0: 10Mbps When NWay is enabled, this bit reflects the result of autonegotiation (Read only). When NWay is disabled, this bit is strap option `Force_Speed' and can be configured through SMI (Read/Write). 1: Enable auto-negotiation process 0: Disable auto-negotiation process This bit can be set through SMI (Read/Write). 1: Power down. All functions will be disabled except SMI function 0: Normal operation 1: Electrically isolates the PHY from RMII/SMII. PHY is still able to respond to MDC/MDIO 0: Normal operation 1: Restart Auto-Negotiation process 0: Normal operation 1: Full duplex operation 0: Half duplex operation When NWay is enabled, this bit reflects the result of autonegotiation (Read only). When NWay is disabled, this bit is strap option `Force_Duplex' and can be configured through SMI (Read/Write). Reserved Single-chip 9-port 10/100Mbps Switch Controller Default 0 0 1 Pin En_ANEG strap option 0 0 0 1 0 40 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.1.2. PHY 0 Register 1: Status Table 66. PHY 0 Register 1: Status Reg.bit 1.15 1.14 Name 100Base_T4 100Base_TX_FD Mode RO RO 1.13 100Base_TX_HD RO 1.12 10Base_T_FD RO 1.11 10Base_T_HD RO 1.[10:7] 1.6 Reserved MF Preamble Suppression RO RO 1.5 Auto-negotiate Complete RO 1.4 Remote Fault RO/LH 1.3 1.2 Auto-Negotiation Ability Link Status RO/LL 1.1 Jabber Detect RO/LH 1.0 Extended Capability RO RO Description 0: No 100Base-T4 capability 1: 100Base-TX full duplex capable 0: Not 100Base-TX full duplex capable 1: 100Base-TX half duplex capable 0: Not 100Base-TX half duplex capable 1: 10Base-TX full duplex capable 0: Not 10Base-TX full duplex capable 1: 10Base-TX half duplex capable 0: Not 10Base-TX half duplex capable The RTL8309SB will accept management frames with preamble suppressed. The RTL8309SB accepts management frames without preamble. 32 minimum preamble bits are required for the first SMI read/write transaction after reset. One idle bit is required between any two management transactions as defined in the IEEE 802.3u specifications. 1: Auto-negotiation process completed. MII Reg.4, 5 are valid if this bit is set 0: Auto-negotiation process not completed 1: Remote fault condition detected 0: No remote fault 1: NWay auto-negotiation capable (permanently=1) 1: Link is established. If the link fails, this bit will be 0 until after reading this bit again 0: Link has failed 1: Jabber detect enabled 0: Jabber detect disabled The jabber function is disabled in 100Base-TX operation. Jabber occurs when a predefined excessively long packet is detected for 10Base-T. When the duration of TXEN exceeds the jabber timer (21ms), the transmission and loopback function are disabled and the COL LED starts blinking. After TXEN goes low for more than 500 ms, the transmitter will be re-enabled and the COL LED will stop blinking. Jabber detect is supported only in 10Base-T operation. 1: Extended register capable (permanently=1) Single-chip 9-port 10/100Mbps Switch Controller 41 Default 0 1 1 1 1 0 1 0 0 1 0 0 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.1.3. PHY 0 Register 4: Auto-Negotiation Advertisement Note: Whenever the link ability of the RTL8309SB is reconfigured, the auto-negotiation process should be executed again to allow the configuration to take effect. Table 67. PHY 0 Register 4: Auto-Negotiation Advertisement Reg.bit 4.15 4.14 4.13 Name Next Page Acknowledge Remote Fault 4.[12:11] 4.10 Mode RO RO RW Reserved Pause RO RW 4.9 4.8 100Base-T4 100Base-TX-FD RO RW 4.7 100Base-TX RW 4.6 10Base-T-FD RW 4.5 10Base-T RW Selector Field RO 4.[4:0] 7.1.4. Description 0: Next Page disabled (Permanently=0) Permanently=0. 1: Advertises that the RTL8309SB has detected a remote fault 0: No remote fault detected 1: Advertises that the RTL8309SB possesses 802.3x flow control capability 0: No flow control capability Technology not supported (Permanently=0). 1: 100Base-TX full duplex capable 0: Not 100Base-TX full duplex capable 1: 100Base-TX half duplex capable 0: Not 100Base-TX half duplex capable 1: 10Base-TX full duplex capable 0: Not 10Base-TX full duplex capable 1: 10Base-TX half duplex capable 0: Not 10Base-TX half duplex capable [00001]=IEEE 802.3. Default 0 0 0 0 Pin En_FCTRL strap option 0 1 1 1 1 00001 PHY 0 Register 5: Auto-Negotiation Link Partner Ability Table 68. PHY 0 Register 5: Auto-Negotiation Link Partner Ability Reg.bit 5.15 Name Next Page Mode RO 5.14 Acknowledge RO 5.13 Remote Fault RO Reserved Pause RO RO 5.9 100Base-T4 RO 5.8 100Base-TX-FD RO 5.7 100Base-TX RO 5.[12:11] 5.10 Description 1: Link partner desires Next Page transfer 0: Link partner does not desire Next Page transfer 1: Link Partner acknowledges reception of Fast Link Pulse (FLP) words 0: Not acknowledged by Link Partner 1: Remote Fault indicated by Link Partner 0: No remote fault indicated by Link Partner 1: Flow control supported by Link Partner 0: Flow control not supported by Link Partner 1: 100Base-T4 supported by Link Partner 0: 100Base-T4 not supported by Link Partner 1: 100Base-TX full duplex supported by Link Partner 0: 100Base-TX full duplex not supported by Link Partner Note: If auto negotiation is disabled and this bit is set, Reg0.13 and Reg0.8 will be set to 1 after link is established. 1: 100Base-TX half duplex supported by Link Partner 0: 100Base-TX half duplex not supported by Link Partner Note: If auto negotiation is disabled and this bit is set, Reg0.13 will be set to 1 and Reg0.8 will be set to 0 after link is established. Single-chip 9-port 10/100Mbps Switch Controller 42 Default 0 0 0 0 0 0 0 0 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Reg.bit 5.6 Name 10Base-T-FD 5.5 5.[4:0] 7.1.5. Mode RO 10Base-T RO Selector Field RO Description 1: 10Base-TX full duplex supported by Link Partner 0: 10Base-TX full duplex not supported by Link Partner Note: If auto negotiation is disabled and this bit is set, Reg0.13 will be set to 0 and Reg0.8 will be set to 1 after link is established. 1: 10Base-TX half duplex supported by Link Partner 0: 10Base-TX half duplex not supported by Link Partner Note: If auto negotiation is disabled and this bit is set, Reg0.13 and Reg0.8 will be set to 0 after a link is established. [00001]=IEEE802.3. Default 0 0 00001 PHY 0 Register 6: Auto-Negotiation Expansion Table 69. PHY 0 Register 6: Auto-Negotiation Expansion Reg.bit 6.[15:5] 6.4 Name Reserved Parallel Detection Fault Mode RO RO 6.3 Link Partner Next Pageable Local Next Pageable Page Received RO Link Partner AutoNegotiation Able RO 6.2 6.1 6.0 7.1.6. RO RO Description 1: A fault has been detected via the Parallel Detection function 0: A fault has not been detected via the Parallel Detection function 0: Link Partner is not Next Pageable (permanently=0) 1: The RTL8309SB is Next Pageable 0: The RTL8309SB is not Next Pageable 1: A New Page has been received 0: A New Page has not been received If NWay is enabled, this bit means: 1: Link Partner is Auto-Negotiation able 0: Link Partner is not Auto-Negotiation able Default 0 0 0 0 0 0 (NWay) or 1 (Force) PHY 0 Register 16: Global Control 0 Table 70. PHY 0 Register 16: Global Control 0 Reg.bit Name 16.[15:13] LED Mode 16.12 Software Reset Mode RW RW/ SC Description 111 -> Mode 7: Speed, Duplex+Collision, Link+Act, SQI 110 -> Mode 6: Activity, Speed, Link, SQI 101 -> Mode 5: Speed, Duplex, Link+Act, SQI 100 -> Mode 4: Collision, Duplex, Link+Act+Speed, SQI 011 -> Mode 3: SQI, Duplex+Collision, Link+Act+Speed,10/100. 010 -> Mode 2: RxAct+10/100, TxAct+10/100, Link, SQI 001 -> Mode 1: Duplex+Collision, 10Link+Act, 100Link+Act, SQI 000 -> Mode 0: Duplex+Collision, Bi-color Speed, Bi-color Link+Act, SQI. 1: Soft reset. This bit is self-clearing If this bit is set to 1, the RTL8309SB will reset all registers in it except PHY registers and will not load configurations from EEPROM or strapping pins. Software reset is designed to provide a convenient way for users to change the configuration via SMI. After changing register values in the RTL8309SB (except PHY registers) via SMI, the external device must execute a soft reset in order to update the configuration by setting this bit to 1. Single-chip 9-port 10/100Mbps Switch Controller 43 Default 111 0 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Reg.bit 16.11 16.10 16.9 Name Disable VLAN Disable 802.1Q tag aware VLAN Disable VLAN member set ingress filtering Mode RW RW RW 16.8 Disable VLAN tag admit control RW 16.7 EEPROM existence RO 16.6 Accept Error disable RW 16.5 IEEE 802.3x transmit flow control enable RW 16.4 IEEE 802.3x receive flow control enable RW 16.3 Broadcast input or output drop Aging enable RW 16.2 RW Description 1: Disable VLAN 0: Enable VLAN. The default VLAN membership configuration by internal register is MII port overlapped with all the other ports to form 8 individual VLANs. This default membership configuration may be modified by setting internal registers via the SMI interface or EEPROM. 1: Disable 802.1Q tagged-VID Aware function. The RTL8309SB will not check the tagged VID on received frames to perform tagged-VID VLAN mapping. Under this configuration, the RTL8309SB only uses the per port VLAN index register to perform Port-Based VLAN mapping 0: Enable the Member Set Filtering function of VLAN Ingress Rule. The RTL8309SB checks the tagged VID on received frames with the VIDA[11:0]~VIDH[11:0] to index to a member set, then performs VLAN mapping. The RTL8309SB uses tagged-VID VLAN mapping for tagged frames but still uses port-based VLAN mapping for priority-tagged and untagged frames 1: The switch will not drop a received frame if the ingress port of this packet is not included in the matched VLAN member set. It will still forward the packet to the VLAN members specified in the matched member set. This setting works on both port-based and tag-based VLAN configurations 0: The switch will drop the received frame if the ingress port of this packet is not included in the matched VLAN member set 1: The switch accepts all frames it receives whether tagged or untagged 0: The switch will only accept tagged frames and will drop untagged frames 1: EEPROM does not exist (pin EnEEPROM=0 or pin EnEEPROM=1 but EEPROM does not exist) 0: EEPROM exists (pin EnEEPROM=1 and EEPROM exists) 1: Filter bad packets in normal operation 0: Switch all packets including bad ones. This bit is intended for debugging purposes only 1: Determines when to invoke flow control based on auto negotiation results 0: Will not enable transmit flow control no matter what the auto negotiation result is 1: When the RTL8309SB receives a pause control frame, it has the ability to stop the next transmission of a normal frame until the timer is expired based on the auto negotiation result 0: Will not receive flow control no matter what the auto negotiation result is 1: Broadcast input drop is selected 0: Broadcast output drop is selected 1: Enable aging function 0: Disable aging function. The addresses learned in the lookup table will not be aged out. If the table is full, the last entry in the table will be deleted to make room for the new entry Single-chip 9-port 10/100Mbps Switch Controller 44 Default 1 0 1 1 0 1 1 1 1 1 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Reg.bit 16.1 Name Fast aging enable Mode RW 16.0 Enable ISP MAC Address Translation RW 7.1.7. Description 1: Enable fast aging function. The entry learned in the lookup table will be aged out if it is not updated within an 800s period 0: Disable fast aging function 1: Enable ISP MAC Address Translation function 0: Disable ISP MAC Address Translation function Default 0 0 PHY 0 Register 17: Global Control 1 Table 71. PHY 0 Register 17: Global Control 1 Reg.bit Name 17.[15:13] 802.1p base priority 17.12 Mode RW Trunking port assignment RW 17.[11:10] Queue weight RW 17.9 Disable IP priority for IP address [A] RW 17.8 Disable IP priority for IP address [B] RW 17.7 Enable default high priority DiffServ code point RW Description Classifies priority for incoming 802.1Q packets, if 802.1p priority classification is enabled. `User priority' is compared against this value. >=: Classify as high priority <: Classify as low priority 1: Combine port 0 and 1 as one trunking port, if trunking is enabled via strapping pin `Dis_Trunk' 0: Combine port 6 and 7 as one trunking port, if trunking is enabled via strapping pin `Dis_Trunk' The frame service ratio between the high priority queue and low priority queue is: 11=16:1 10=always high priority queue first 01=8:1 00=4:1 1: Compare both the source and destination IP address of incoming packets against the value, IP address [A] AND IP mask [A], to classify packet priority 0: Do not compare the source or destination IP address of incoming packets against the value `IP address [A] AND IP mask [A]' 1: Compare both the source and destination IP address of incoming packets against the value, IP address [B] AND IP mask [B], to classify packet priority 0: Do not compare the source or destination IP address of incoming packets against the value `IP address [B] AND IP mask [B]' 1: The default DiffServ code point listed below will be considered as high priority code point if the DiffServ priority function is enabled. EF - 101110 AF - 001010, 010010, 011010, 100010 Network Control - 111000, 110000 Default 100 1 11 0 0 1 0: The default DiffServ code point will be considered low priority 17.[6:0] Reserved Single-chip 9-port 10/100Mbps Switch Controller 1111111 45 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.1.8. PHY 0 Register 18: Global Control 2 Table 72. PHY 0 Register 18: Global Control 2 Reg.bit 18.15 Name Enable differential service code point [A] 18.14 Reserved 18.[13:8] Differential service code point [A] 18.7 Enable differential service code point [B] 18.6 18.[5:0] Reserved Differential service code point [B] 7.1.9. Mode RW RW RW RW Description 1: If differential service priority is enabled, this bit specifies differential service code point [A] is high priority 0: If differential service priority is enabled, this bit specifies differential services code point [A] is low priority Used to specify the high priority differential service code point A. For example, if these bits are set to 111111, incoming packets with a TOS field equal to 111111 will be considered high priority packets. 1: If differential service priority is enabled, this bit specifies differential services code point [B] is high priority 0: If differential service priority is enabled, this bit specifies differential services code point [B] is low priority Used to specify a high priority differential service code point B. For example, if these bits are set to 000000, incoming packets with a TOS field equal to 000000 will be considered high priority packets. Default 0 1 111111 0 1 111111 PHY 0 Register 19: Global Control 3 Table 73. PHY 0 Register 19: Global Control 3 Reg.bit 19.15 19.14 19.13 19.12 19.11 19.10 19.[9:0] 7.1.10. Name Enable drop for 48 pass 1 Reserved TX IPG compensation Disable loop detection Lookup table accessible enable Reserved Reserved Mode RW RW RW RW Description 1: Enable drop packet after SRAM full for 48 pass 1 0: Disable drop packet after SRAM full for 48 pass 1. This will result in SRAM run out 1: 90ppm TX IPG (InterPacketGap) compensation 0: 65ppm TX IPG (InterPacketGap) compensation 1: Disable loop detection function 0: Enable loop detection function 1: Lookup table is accessible via indirect access registers 0: Lookup table is not accessible Default 1 1 1 1 0 1 11 1100 0001 PHY 0 Register 22: Port 0 Control 0 Table 74. PHY 0 Register 22: Port 0 Control 0 Reg.bit Name 22.[15:14] Reserved 22.13 Local loopback 22.12 Null VID replacement Mode RW RW RW Description Reserved. 1: Perform `local loopback', i.e. loop MAC's RX back to TX 0: Normal operation 1: The switch will replace a NULL VID with a port VID (12 bits) 0: No replacement for a NULL VID Single-chip 9-port 10/100Mbps Switch Controller 46 Default 11 0 0 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Reg.bit 22.11 22.10 Name Discard Non PVID packets Disable 802.1p priority Mode RW RW 22.9 Disable Diffserv priority RW 22.8 Disable port-based priority RW Reserved VLAN tag insertion and removal RW RW 22.[7:2] 22[1:0] Description 1: If the received packets are tagged, the switch will discard packets with a VID that does not match the ingress port default VID, which is indexed by port 0's `Port-based VLAN index' 0: No packets will be dropped 1: Disable 802.1p priority classification for ingress packets on port 0 0: Enable 802.1p priority classification Default 0 Pin Dis_VLAN_Pri strap option Default = 1 1: Disable Diffserv priority classification for ingress packets on Pin port 0 Dis_DS_Pri 0: Enable Diffserv priority classification strap option Default = 1 1: Disable port priority function Pin 0: Enable port priority function. Ingress packets from port 0 will Sel_Port_Pri be classified as high priority strap option Default = 1 1111111 11 11=Do not insert or remove VLAN tags to/from packets sent out from this port. 10=The switch will add VLAN tags to packets if they are not tagged. The switch will not add tags to packets already tagged. The inserted tag is the ingress port's `Default tag', which is indexed by port 0's `Port-based VLAN index'. 01=The switch will remove VLAN tags from packets, if they are tagged when these packets are send out from port 0. The switch will not modify packets received without tags. 00=The switch will remove VLAN tags from packets then add new tags to them. The inserted tag is the ingress port's `Default tag', which is indexed by port 0's `Port-based VLAN index'. This is a replacement processing for tagged packets and an insertion for untagged packets. Single-chip 9-port 10/100Mbps Switch Controller 47 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.1.11. PHY 0 Register 23: Port 0 Control 1 Table 75. PHY 0 Register 23: Port 0 Control 1 Reg.bit Name 23.[15:12] Reserved 23.11 Transmission enable 23.10 Reception enable Mode RW RW 23.9 Learning enable RW 23.8 Loop status RO 23[7:4] Link quality RO 23[3:0] Reserved 7.1.12. Description 1: Enable packet transmission on port 0 0: Disable packet transmission on port 0 1: Enable packet reception on port 0 0: Disable packet reception on port 0 1: Enable switch address learning capability 0: Disable switch address learning capability 1: A loop has been detected on port 0 0: No loop exists on port 0 4-bit field indicating the link quality of the receive twisted-pair or fiber link. 0000: Highest link quality 1111: Lowest link quality Default 1111 1 1 1 0 1000 PHY 0 Register 24: Port 0 Control 2 & VLAN Entry [A] Table 76. PHY 0 Register 24: Port 0 Control 2 & VLAN Entry [A] Reg.bit Name Mode 24[15:12] Port 0 VLAN index [3:0] 24.[11~9] Reserved 24.[8:0] VLAN ID [A] Membership Bit [8:0] 7.1.13. RW Description In a port-based VLAN configuration, this register indexes port 0's `Port VLAN Membership', which can be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 0 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. This 9-bit field specifies which ports are members of VLAN A. If a destination address look up fails, the packet associated with this VLAN will be broadcast to ports specified in this field. Bit 0 stands for port 0, bit 1 stands for port 8. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0000 111 1 0000 0001 PHY 0 Register 25: VLAN Entry [A] Table 77. PHY 0 Register 25: VLAN Entry [A] Reg.bit Name 25.[15:12] Reserved 25[11:0] VLAN ID [A] Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN A. Single-chip 9-port 10/100Mbps Switch Controller 48 Default 1111 0000 0000 0000 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.2. PHY 1 Registers 7.2.1. PHY 1 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.2.2. PHY 1 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.2.3. PHY 1 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. 7.2.4. PHY 1 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.2.5. PHY 1 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. 7.2.6. PHY 1 Register 16~17: IP Priority Address [A] Table 78. PHY 1 Register 16~17: IP Priority Address [A] Reg.bit 16 17 7.2.7. Name IP Address [A] [31:16] Mode RW IP Address [A] [15:0] RW Description The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. The switch will both compare the source and destination IP addresses of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. Default 0xFFFF 0xFFFF PHY 1 Register 18~19: IP Priority Address [B] Table 79. PHY 1 Register 18~19: IP Priority Address [B] Reg.bit Name 18 IP Address [B] [31:16] 19 IP Address [B] [15:0] Mode Description RW The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet, if IP priority for IP address [B] is enabled. RW The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet, if IP priority for IP address [B] is enabled. Single-chip 9-port 10/100Mbps Switch Controller 49 Default 0xFFFF 0xFFFF Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.2.8. PHY 1 Register 22: Port 1 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is not pin Sel_PortPri strap option for port 1. Default value for 22.8 is 1. 7.2.9. PHY 1 Register 23: Port 1 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. 7.2.10. PHY 1 Register 24: Port 1 Control 2 & VLAN Entry [B] Table 80. PHY 1 Register 24: Port 1 Control 2 & VLAN Entry [B] Reg.bit Name Mode 24[15~12] Port 1 VLAN index RW [3:0] 24.[11:9] Reserved 24.[8:0] VLAN ID [B] Membership Bit [8:0] 7.2.11. RW Description In a port-based VLAN configuration, this register indexes port 1's `Port VLAN Membership', which could be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 1 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. This 9-bit field specifies which ports are members of VLAN B. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0001 111 1 0000 0010 PHY 1 Register 25: VLAN Entry [B] Table 81. PHY 1 Register 25: VLAN Entry [B] Reg.bit Name 25.[15:12] Reserved 25[11:0] VLAN ID [B] Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN B. Default 1111 0000 0000 0001 7.3. PHY 2 Registers 7.3.1. PHY 2 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.3.2. PHY 2 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.3.3. PHY 2 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. Single-chip 9-port 10/100Mbps Switch Controller 50 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.3.4. PHY 2 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.3.5. PHY 2 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. 7.3.6. PHY 2 Register 16~17: IP Priority Mask [A] Table 82. PHY 2 Register 16~17: IP Priority Mask [A] Reg.bit 16 17 7.3.7. Name IP Mask [A] [31:16] Mode RW IP Mask [A] [15:0] RW Description The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [A] AND IP mask [A], to classify priority for the packet. Default 0xFFFF 0xFFFF PHY 2 Register 18~19: IP Priority Mask [B] Table 83. PHY 2 Register 18~19: IP Priority Mask [B] Reg.bit 18 19 7.3.8. Name IP Mask [B] [31:16] IP Mask [B] [15:0] Mode RW RW Description The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet, if IP priority for IP address [B] is enabled. The switch will compare both the source and destination IP addresses of an incoming packet against the value, IP address [B] AND IP mask [B], to classify priority for the packet, if IP priority for IP address [B] is enabled. Default 0xFFFF 0xFFFF PHY 2 Register 22: Port 2 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is pin Sel_PortPri strap option for port 2. Default value for 22.8 is 1. 7.3.9. PHY 2 Register 23: Port 2 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. Single-chip 9-port 10/100Mbps Switch Controller 51 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.3.10. PHY 2 Register 24: Port 2 Control 2 & VLAN Entry [C] Table 84. PHY 2 Register 24: Port 2 Control 2 & VLAN Entry [C] Reg.bit Name 24[15:12] Port 2 VLAN Index [3:0] 24[11~9] Reserved 24.[8:0] VLAN ID [C] Membership Bit [8:0] 7.3.11. Mode RW RW Description In a port-based VLAN configuration, this register indexes port 2's `Port VLAN Membership', which can be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 2 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. This bytes are reserved for not used This 9-bit field specifies which ports are members of VLAN C. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0010 111 1 0000 0100 PHY 2 Register 25: VLAN Entry [C] Table 85. PHY 2 Register 25: VLAN Entry [C] Reg.bit Name 25.[15:12] Reserved 25[11:0] VLAN ID [C] Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN C. Default 1111 0000 0000 0010 7.4. PHY 3 Registers 7.4.1. PHY 3 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.4.2. PHY 3 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.4.3. PHY 3 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. 7.4.4. PHY 3 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.4.5. PHY 3 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. 7.4.6. PHY 3 Register 16~18: Switch MAC Address The Switch MAC address is used as the source address in MAC pause control frames. Single-chip 9-port 10/100Mbps Switch Controller 52 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 86. PHY 3 Register 16~18: Switch MAC Address Reg.bit 16 17 18 7.4.7. Name Switch MAC Address [47:32] Switch MAC Address [31:16] Switch MAC Address [15:0] Mode RW RW RW Description 16.[15:8] = Switch MAC Address Byte 4. 16.[7:0] = Switch MAC Address Byte 5. 17.[15:8] = Switch MAC Address Byte 2. 17.[7:0] = Switch MAC Address Byte 3. 18.[15:8] = Switch MAC Address Byte 0. 18.[7:0] = Switch MAC Address Byte 1. Default 0x5452 0x834C 0xB009 PHY 3 Register 22: Port 3 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is pin Sel_PortPri strap option for port 3. Default value for 22.8 is 1. 7.4.8. PHY 3 Register 23: Port 3 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. 7.4.9. PHY 3 Register 24: Port 3 Control 2 & VLAN Entry [D] Table 87. PHY 3 Register 24: Port 3 Control 2 & VLAN Entry [D] Reg.bit Name Mode 24[15:12] Port 3 VLAN index RW [3:0] 24[11~9] Reserved 24.[8:0] VLAN ID [D] Membership Bit [8:0] 7.4.10. RW Description In a port-based VLAN configuration, this register indexes port 3's `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 3 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. This 9-bit field specifies which ports are members of VLAN D. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0011 111 1 0000 1000 PHY 3 Register 25: VLAN Entry [D] Table 88. PHY 3 Register 25: VLAN Entry [D] Reg.bit Name 25.[15:12] Reserved 25[11:0] VLAN ID [D] Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN D. Single-chip 9-port 10/100Mbps Switch Controller 53 Default 1111 0000 0000 0011 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.5. PHY 4 Registers 7.5.1. PHY 4 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.5.2. PHY 4 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.5.3. PHY 4 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. 7.5.4. PHY 4 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.5.5. PHY 4 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. 7.5.6. PHY 4 Register 16~18: ISP MAC Address The ISP's MAC address is used as the source address in MAC address translation functions. Table 89. PHY 4 Register 16~18: ISP MAC Address Reg.bit 16 17 18 7.5.7. Name ISP MAC Address [15:0] ISP MAC Address [31:16] ISP MAC Address [47:32] Mode RW RW RW Description 16.[15:8] = ISP MAC Address Byte 1. 16.[7:0] = ISP MAC Address Byte 0. 17.[15:8] = ISP MAC Address Byte 3. 17.[7:0] = ISP MAC Address Byte 2. 18.[15:8] = ISP MAC Address Byte 5. 18.[7:0] = ISP MAC Address Byte 4. Default 0x4205 0x212F 0x5C91 PHY 4 Register 22: Port 4 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is not pin Sel_PortPri strap option for port 4. Default value for 22.8 is 1. 7.5.8. PHY 4 Register 23: Port 4 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. Single-chip 9-port 10/100Mbps Switch Controller 54 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.5.9. PHY 4 Register 24: Port 4 Control 2 & VLAN Entry [E] Table 90. PHY 4 Register 24: Port 4 Control 2 & VLAN Entry [E] Reg.bit Name 24[15:12] Port 4 VLAN Index 24.[11~9] Reserved 24.[8:0] VLAN ID [E] Membership Bit [8:0] 7.5.10. Mode RW Description In a port-based VLAN configuration, this register indexes port 4's `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 4 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. RW This 9-bit field specifies which ports are members of VLAN E. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0100 111 1 0001 0000 PHY 4 Register 25: VLAN Entry [E] Table 91. PHY 4 Register 25: VLAN Entry [E] Reg.bit Name 25.[15:12] Reserved 25.[11:0] VLAN ID [E] Mode RW Description Default 1111 Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN E. 0000 0000 0100 7.6. PHY 5 Registers 7.6.1. PHY 5 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.6.2. PHY 5 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.6.3. PHY 5 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. 7.6.4. PHY 5 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.6.5. PHY 5 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. Single-chip 9-port 10/100Mbps Switch Controller 55 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.6.6. PHY 5 Register 16: MII Port Control 0 Table 92. PHY 5 Register 16: MII Port Control 0 Reg.bit 16.15 Mode RW 16.14 Name Transmission enable Reception enable 16.13 Learning enable RW 16.12 Enable MII loopback RW 16.11 Disable 802.1p priority RW RW 16.10 Disable Diffserv priority RW 16.9 Disable port-based priority RW 16.8 16.[7:2] 16.[1:0] Reserved Reserved VLAN tag insertion and removal RW Description 1: Enable packet transmission on MII interface 0: Disable packet transmission on MII interface 1: Enable packet reception on MII interface 0: Disable packet reception on MII interface 1: Enable switch address learning capability 0: Disable switch address learning capability 1: Enable local loop back function. The switch will only forward local and broadcast packets from the input of MII RX to the output of MII TX, and will drop unicast packets from the input of MII RX. The other ports still can forward packets to the MII port 0: Disable local loop back function 1: Disable 802.1p priority classification for ingress packets on port 8 0: Enable 802.1p priority classification Default 1 1 1 0 Pin Dis_VLAN_Pri strap option Default = 1 1: Disable Diffserv priority classification for ingress packets on Pin port 8 Dis_DS_Pri 0: Enable Diffserv priority classification strap option Default = 1 1: Disable port priority function Pin 0: Enable port priority function. Ingress packets from port 8 will Sel_Port_Pri be classified as high priority strap option Default = 1 0 111111 11 11=Do not insert or remove VLAN tags to/from packets sent out from this port. 10=The switch will add VLAN tags to packets if they are not tagged. The switch will not add tags to packets already tagged. The inserted tag is the ingress port's `Default tag', which is indexed by the MII port's `Port-based VLAN index'. 01=The switch will remove VLAN tags from packets, if they are tagged when these packets are send out from MII port. The switch will not modify packets received without tags. 00=The switch will remove VLAN tags from packets then add new tags to them. The inserted tag is the ingress port's `Default tag', which is indexed by MII port's `Port-based VLAN index'. This is a replacement processing for tagged packets and an insertion for untagged packets. Single-chip 9-port 10/100Mbps Switch Controller 56 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.6.7. PHY 5 Register 17: MII Port Control 1 & VLAN Entry [I] Table 93. PHY 5 Register 17: MII Port Control 1 & VLAN Entry [I] Reg.bit 17.15 17.14 Name Null VID replacement Mode RW Discard NonPVID packets RW 17.13 Reserved 17.[12~9] Port 8 VLAN index [3:0] 17.[8:0] 7.6.8. VLAN ID [I] Membership Bit [8:0] RW Description 1: The switch will replace a NULL VID with a port VID (12 bits) 0: No replacement for a NULL VID 1: If the received packets are tagged, the switch will discard packets with a VID that does not match the ingress port default VID, which is indexed by the MII port's `Port-based VLAN index' 0: No packets will be dropped In port-based VLAN configuration, this register indexs to port 8's `Port VLAN Membership', which can be defined in register `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 8 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. This 9-bit field specifies which ports are members of VLAN I. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0 0 1 1000 1 1111 1111 PHY 5 Register 18: VLAN Entry [I] Table 94. PHY 5 Register 18: VLAN Entry [I] Reg.bit Name 18.[15:12] Reserved 18.[11:0] VLAN ID [I] 7.6.9. Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN I. Default 1111 0000 0001 0000 PHY 5 Register 19: CPU Port & WAN Port Table 95. PHY 5 Register 19: CPU Port & WAN Port Reg.bit Name 19.[15:8] Reserved 19.[7:4] WAN Port 19.[3:0] CPU Port Mode RW RW Description Specify the WAN port on the RTL8309SB. 1000=MII Port is WAN Port 0111=Port 7 is WAN Port 0110=Port 6 is WAN Port 0101=Port 5 is WAN Port 0100=Port 4 is WAN Port 0011=Port 3 is WAN Port 0010=Port 2 is WAN Port 0001=Port 1 is WAN Port 0000=Port 0 is WAN Port Specify the CPU port on the RTL8309SB. 1000=MII Port is CPU Port 0111=Port 7 is CPU Port 0110=Port 6 is CPU Port 0101=Port 5 is CPU Port 0100=Port 4 is CPU Port 0011=Port 3 is CPU Port 0010=Port 2 is CPU Port 0001=Port 1 is CPU Port 0000=Port 0 is CPU Port Single-chip 9-port 10/100Mbps Switch Controller 57 Default 0xFF 0111 0000 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.6.10. PHY 5 Register 22: Port 5 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is not pin Sel_PortPri strap option for port 5. Default value for 22.8 is 1. 7.6.11. PHY 5 Register 23: Port 5 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. 7.6.12. PHY 5 Register 24: Port 5 Control 2 & VLAN Entry [F] Table 96. PHY 5 Register 24: Port 5 Control 2 & VLAN Entry [F] Reg.bit Name 24.[15:12] Port 5 VLAN Index [3:0] 24.[11~9] Reserved 24.[8:0] VLAN ID [F] Membership Bit [8:0] 7.6.13. Mode RW Description In a port-based VLAN configuration, this register indexes port 5's `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 5 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. RW This 9-bit field specifies which ports are members of VLAN F. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0101 111 1 0010 0000 PHY 5 Register 25: VLAN Entry [F] Table 97. PHY 5 Register 25: VLAN Entry [F] Reg.bit Name 25.[15:12] Reserved 25.[11:0] VLAN ID [F] Mode RW Description Default 1111 Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN F. Single-chip 9-port 10/100Mbps Switch Controller 58 0000 0000 0101 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.7. PHY 6 Registers 7.7.1. PHY 6 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.7.2. PHY 6 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.7.3. PHY 6 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. 7.7.4. PHY 6 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.7.5. PHY 6 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. 7.7.6. PHY 6 Register 22: Port 6 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is not pin Sel_PortPri strap option for port 6. Default value for 22.8 is 1. 7.7.7. PHY 6 Register 23: Port 6 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. Single-chip 9-port 10/100Mbps Switch Controller 59 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.7.8. PHY 6 Register 24: Port 6 Control 2 & VLAN Entry [G] Table 98. PHY 6 Register 24: Port 6 Control 2 & VLAN Entry [G] Reg.bit Name Mode 24[15:12] Port 6 VLAN index RW [3:0] 24.[11~9] Reserved 24.[8:0] VLAN ID [G] Membership Bit [8:0] 7.7.9. RW Description In a port-based VLAN configuration, this register indexes port 6's `Port VLAN Membership', which may be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 6 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. This 9-bit field specifies which ports are members of VLAN G. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 0110 111 1 0100 0000 PHY 6 Register 25: VLAN Entry [G] Table 99. PHY 6 Register 25: VLAN Entry [G] Reg.bit Name 25.[15:12] Reserved 25[11:0] VLAN ID [G] Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN G. Single-chip 9-port 10/100Mbps Switch Controller 60 Default 1111 0000 0000 0110 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.8. PHY 7 Registers 7.8.1. PHY 7 Register 0: Control This register has the same definition as PHY 0 Register 0: Control, page 40. 7.8.2. PHY 7 Register 1: Status This register has the same definition as PHY 0 Register 1: Status, page 41. 7.8.3. PHY 7 Register 4: Auto-Negotiation Advertisement This register has the same definition as PHY 0 Register 4: Auto-Negotiation Advertisement, page 42. 7.8.4. PHY 7 Register 5: Auto-Negotiation Link Partner Ability This register has the same definition as PHY 0 Register 5: Auto-Negotiation Link Partner Ability, page 42. 7.8.5. PHY 7 Register 6: Auto-Negotiation Expansion This register has the same definition as PHY 0 Register 6: Auto-Negotiation Expansion, page 43. 7.8.6. PHY 7 Register 16: indirect Access Control PHY 7 register 16 is used for reading or writing data to the MAC address table. Table 100. PHY 7 Register 16: Indirect Access Control Reg.bit Name 16[15:2] Reserved 16.1 16.0 Command execution Read or write operation Mode RW RW Description 1: Trigger a command to read or write the lookup table 0: Indicates this command has completed 1: Read cycle 0: Write cycle Single-chip 9-port 10/100Mbps Switch Controller 61 Default 1111 1111 1111 11 0 0 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.8.7. PHY 7 Register 17~20: Indirect Access Data Table 101. PHY 7 Register 17~20: Indirect Access Data Reg.bit 17 Name Indirect Data [63:48] Mode RW 18 Indirect Data [47:32] RW 19 Indirect Data [31:16] RW 20 Indirect Data [15:0] RW Description Bit 63~48 of indirect data. Indirect Data [54] = If this bit is 1, indicates this entry is static and will never be aged out. If this bit is 0, indicates this entry is dynamically learned, aged, updated, and deleted. Indirect Data [53:52] = 2-bit counter for internal aging. Indirect Data [51:48] = The source port of this Source MAC Address is learned. Bit 47~32 of indirect data. Indirect Data [47:40] = Source MAC Address [39:32]. Indirect Data [39:32] = Source MAC Address [47:40]. Bit 31~16 of indirect data. Indirect Data [31:24] = Source MAC Address [23:16]. Indirect Data [23:16] = Source MAC Address [31:24]. Bit 15~0 of indirect data. Indirect Data [15:8] = Source MAC Address [7:0]. Indirect Data [7:0] = Source MAC Address [15:8]. Default 0x00 0x00 0x00 0x00 Bits 1~0 and Bits 15~8 of this register also determine the address of data in the lookup table. In a write cycle: Bits 1~0 and Bits 15~8 indirectly map to an entry in the lookup table. The written data should be filled in Indirect Data [63:0] In a read cycle: Bits 1~0 and Bits 15~8 indirectly map to an entry in the lookup table. The read back data will be shown in Indirect Data [63:0]. 7.8.8. PHY 7 Register 22: Port 7 Control 0 This register has the same definition as PHY 0 Register 22: Port 0 Control 0, page 46. Note: Reg 22.8 is not pin Sel_PortPri strap option for port 7. Default value for 22.8 is 1. 7.8.9. PHY 7 Register 23: Port 7 Control 1 This register has the same definition as PHY 0 Register 23: Port 0 Control 1, page 48. 7.8.10. PHY 7 Register 24: Port 7 Control 2 & VLAN Entry [H] Table 102. PHY 7 Register 24: Port 7 Control 2 & VLAN Entry [H] Reg.bit Name Mode 24[15:12] Port 7 VLAN index RW [3:0] Description In a port-based VLAN configuration, this register indexes port 7's `Port VLAN Membership', which can be defined in one of the registers `VLAN ID [A] Membership' to `VLAN ID [I] Membership'. Port 7 can only communicate within the membership. This register also indexes to a default Port VID (PVID) for each port. The PVID is used in tag insertion and filtering if the tagged VID is not the same as the PVID. 24.[11~9] Reserved Single-chip 9-port 10/100Mbps Switch Controller Default 0111 111 62 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Reg.bit 24.[8:0] 7.8.11. Name VLAN ID [H] Membership Bit [8:0] Mode RW Description This 9-bit field specifies which ports are members of VLAN H. If a destination address look up fails, packets associated with this VLAN will be forwarded to ports specified in this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN. Default 1 1000 0000 PHY 7 Register 25: VLAN Entry [H] Table 103. PHY 7 Register 25: VLAN Entry [H] Reg.bit Name 25.[15:12] Reserved 25.[11:0] VLAN ID [H] Mode RW Description Defines the IEEE 802.1Q 12-bit VLAN identifier of VLAN H. Default 1111 0000 0000 0111 7.9. PHY 8 Registers 7.9.1. PHY 8 Register 0: Control Note: This register only works in MII PHY and SNI PHY mode. In MII MAC mode, these registers have no meaning. Table 104. PHY 8 Register 0: Control Reg.bit 0.15 0.14 0.13 Name Mode Reset RO Loopback RO (digital loopback) Speed Select RW 0.12 Auto Negotiation Enable RW 0.11 0.10 0.9 Power Down Isolate Restart Auto Negotiation Duplex Mode RO RO RO 0.8 0.[7:0] RW Description 0: No reset allowed (permanently=0) 0: Normal operation (permanently=0) Default 0 0 1: 100Mbps 0: 10Mbps When NWay is enabled, this bit reflects the result of autonegotiation (Read only). When NWay is disabled, this bit can be set through SMI (Read/Write). 1: Enable auto-negotiation process 0: disable auto-negotiation process This bit can be set through SMI (Read/Write). 0: Normal operation (permanently=0) 0: Normal operation (permanently=0) 0: Normal operation (permanently=0) Pin MII_SPD _STA strap option 1: Full duplex operation 0: Half duplex operation When NWay is enabled, this bit reflects the result of autonegotiation (Read only). When NWay is disabled, this bit may be set through SMI (Read/Write). Pin MII_DUP _STA strap option Reserved Single-chip 9-port 10/100Mbps Switch Controller 1 0 0 0 0 63 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.9.2. PHY 8 Register 1: Status Note: This register only works in MII PHY and SNI PHY mode. In MII MAC mode, these registers have no meaning. Table 105. PHY 8 Register 1: Status Reg.bit 1.15 1.14 1.13 1.12 1.11 1.[10:7] 1.6 Name Mode 100Base_T4 RO 100Base_TX_FD RO 100Base_TX_HD RO 10Base_T_FD RO 10Base_T_HD RO Reserved RO MF Preamble RO Suppression Auto-negotiate RO Complete Remote Fault RO Auto-Negotiation RO Ability Link Status RO 1.5 1.4 1.3 1.2 1.1 1.0 7.9.3. Jabber Detect Extended Capability RO RO Description 0: No 100Base-T4 capability 1: 100Base-TX full duplex capable (permanently=1) 1: 100Base-TX half duplex capable (permanently=1) 1: 10Base-TX full duplex capable (permanently=1) 1: 10Base-TX half duplex capable (permanently=1) The RTL8309SB will accept management frames with preamble suppressed (permanently=1) 1: Auto-negotiation process completed. MII Reg.4, 5 are valid if this bit is set (permanently=1) 0: No remote fault (permanently=0) 1: NWay auto-negotiation capable (permanently=1) Default 0 1 1 1 1 0 1 1 0 1 1: Link is established. If the link should ever fail, this bit will be Pin MII_LNK 0 until after reading this bit again _STA# strap 0: Link failed option 0: No Jabber detected (permanently=0) 0 1: Extended register capable (permanently=1) 1 PHY 8 Register 4: Auto-Negotiation Advertisement Note: This register only works in MII PHY and SNI PHY mode. In MII MAC mode, these registers have no meaning. Table 106. PHY 8 Register 4: Auto-Negotiation Advertisement Reg.bit 4.15 4.14 4.13 Name Next Page Mode RO Acknowledge Remote Fault RO RO Reserved Pause RO RW 4.9 4.8 100Base-T4 100Base-TX-FD RO RW 4.7 100Base-TX RW 4.6 10Base-T-FD RW 4.5 10Base-T RW Selector Field RO 4.[12:11] 4.10 4.[4:0] Description 1: Next Page enabled 0: Next Page disabled (Permanently=0) Permanently=0 1: Advertises that the RTL8309S has detected a remote fault 0: No remote fault detected 1: Advertises that the RTL8309SB possesses 802.3x flow control capability 0: No flow control capability Technology not supported (Permanently=0). 1: 100Base-TX full duplex capable 0: Not 100Base-TX full duplex capable 1: 100Base-TX half duplex capable 0: Not 100Base-TX half duplex capable 1: 10Base-TX full duplex capable 0: Not 10Base-TX full duplex capable 1: 10Base-TX half duplex capable 0: Not 10Base-TX half duplex capable [00001]=IEEE 802.3. Single-chip 9-port 10/100Mbps Switch Controller 64 Default 0 0 0 0 Pin MII_FCTRL _STA strap option 0 1 1 1 1 00001 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 7.9.4. MII Port NWay Mode Table 107. MII Port NWay Mode Condition Upon Reset After Reset Description Strapping MII_SPD_STA=1 and MII_DUP_STA=1 Reg0.13=1, Reg0.8=1 Strapping MII_SPD_STA=1 and MII_DUP_STA=0 Reg0.13=1, Reg0.8=0 Strapping MII_SPD_STA=0 and MII_DUP_STA=1 Reg0.13=0, Reg0.8=1 Strapping MII_SPD_STA=0 and MII_DUP_STA=0 Reg0.13=0, Reg0.8=0 Defau1t value of Reg4.10 is strapped from pin MII_FCTRL_STA Default value of Reg1.2 is strapped from pin MII_LNK_STA#. MII_LNK_STA# pulled down Reg1.2=1. MII_LNK_STA# pulled up Reg1.2=0. If PHY 8 register 4 is configured as Reg4.8=1, Reg4.7=1, Reg4.6=1, Reg4.5=1, the RTL8309SB will reflect this configuration in PHY 8 register 0 as Reg0.13=1 and Reg0.8=1. If PHY 8 register 4 is configured as Reg4.8=0, Reg4.7=1, Reg4.6=1, Reg4.5=1, the RTL8309SB will reflect this configuration in PHY 8 register 0 as Reg0.13=1 and Reg0.8=0. If PHY 8 register 4 is configured as Reg4.8=0, Reg4.7=0, Reg4.6=1, Reg4.5=1, the RTL8309SB will reflect this configuration in PHY 8 register 0 as Reg0.13=0 and Reg0.8=1. If PHY 8 register 4 is configured as Reg4.8=0, Reg4.7=0, Reg4.6=0, Reg4.5=1, the RTL8309SB will reflect this configuration in PHY 8 register 0 as Reg0.13=0 and Reg0.8=0. If the CPU polls register 5, the RTL8309SB replies with the contents in register 4. If the CPU polls register 4, the RTL8309SB replies with the contents in register 4. 7.9.5. MII Port Force Mode Table 108. MII Port Force Mode Condition Upon Reset After Reset Description Strapping MII_SPD_STA=1 and MII_DUP_STA=1 Reg0.13=1, Reg0.8=1 Strapping MII_SPD_STA=1 and MII_DUP_STA=0 Reg0.13=1, Reg0.8=0 Strapping MII_SPD_STA=0 and MII_DUP_STA=1 Reg0.13=0, Reg0.8=1 Strapping MII_SPD_STA=0 and MII_DUP_STA=0 Reg0.13=0, Reg0.8=0 Defau1t value of Reg4.10 is strapped from pin MII_FCTRL_STA. Default value of Reg1.2 is strapped from pin MII_LNK_STA#. MII_LNK_STA# pulled down Reg1.2=1. MII_LNK_STA# pulled up Reg1.2=0. The CPU only writes register 0.13 and 0.8 to configure a link status, then reads register 1.2 to determine whether the link partner can link with this status. Single-chip 9-port 10/100Mbps Switch Controller 65 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8. Functional Description 8.1. Physical Layer Transceiver Functional Overview 8.1.1. Auto Negotiation for UTP The RTL8309SB obtains the states of duplex, speed, and flow control ability for each port in UTP mode through the autonegotiation mechanism defined in the IEEE 802.3u specifications. During auto-negotiation, each port advertises its ability to its link partner and compares its ability with advertisements received from its link partner. By default, the RTL8309SB advertises full capabilities (100Full, 100Half, 10Full, 10Half) together with flow control ability. If the link partner to the RTL8309SB is forced to bypass auto negotiation, or auto negotiation is not supported, the link status of the RTL8309SB is determined by observing the signal at the receiver. 8.1.2. 100Base-Tx Transmit Function The 100Base-TX transmit function performs parallel to serial conversion, 4B/5B coding, scrambling, NRZ/NRZI conversion, and MLT-3 encoding. The 5-bit serial data stream after 4B/5B coding is then scrambled as defined by the TP-PMD Stream Cipher function to flatten the power spectrum energy such that EMI effects can be reduced significantly. The scrambled seed is based on PHY addresses and is unique for each port. After scrambling, the bit stream is driven onto the network media in the form of MLT-3 signaling. The MLT-3 multi-level signaling technology moves the power spectrum energy from high frequency to low frequency, which also benefits EMI emission. 8.1.3. 100Base-Tx Receive Function The 100Base-TX receive mechanism includes an adaptive equalizer, DC restoration, MLT3 to NRZI conversion, data and clock recovery, NRZI to NRZ conversion, de-scrambling, 4B/5B decoding, and serial to parallel conversion. The process starts with the adaptive equalizer and DC restoration circuits to compensate for the distortion in the MLT-3 signal. This variable equalizer makes an estimate by comparing the received signal strength against some known cable characteristic, then tunes itself for optimization. This on-going process allows the RTL8309SB to adjust itself to environmental changes such as temperature variations. The equalized data then goes through a DC restoration circuit to compensate for the effects of base line wander in order to improve the dynamic range. After restoration, the MLT-3 to NRZI, NRZI to NRZ converters then convert the analog signal to a digital bit-stream. The clock recovery circuit extracts the 125MHz clock from the edges of the NRI signal. A De-scrambler, 5B/4B decoder and serialto-parallel conversion circuits follow. Finally, the converted parallel data is fed into the MAC. Single-chip 9-port 10/100Mbps Switch Controller 66 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.1.4. 10Base-T Transmit Function The output 10Base-T waveform is Manchester-encoded before it is driven into the network media with a typical 2.3V amplitude. The internal filter shapes the driven signals to reduce EMI emission, eliminating the need for an external filter. The harmonic contents are at least 27dB below the fundamental when the RTL8309SB drives an all-ones Manchester-encoded signal. 8.1.5. 10Base-T Receive Function The Manchester decoder converts the incoming serial stream to NRZ data when the squelch circuit detects the signal level is above squelch level. The squelch circuit eliminates signals with an amplitude lower than 400mV, or with short pulse width, to prevent the decoder being abnormally triggered by noise at the differential pairs. When the received signal exceeds the squelch level, the internal PLL locks the input signal and the RTL8309SB will decode a data frame. 8.1.6. Link Monitor The 10Base-T link pulse detection circuit continually monitors the RXIP/RXIN pins for the presence of valid link pulses. Auto-polarity is implemented to correct the detected reverse polarity of RXIP/RXIN signal pairs. 8.1.7. Power Saving Mode In power saving mode, the power for the MAC and parts of the PHY transceiver are turned off. The RTL8309SB implements power saving mode on a per-port basis. A port automatically enters power saving mode 10 seconds after the cable is disconnected from it. Once a port enters power saving mode, it transmits normal link pulses only on its TXOP/TXON pins and continues to monitor the RXIP/RXIN pins to detect incoming signals, which might be the 100Base-TX MLT-3 idle pattern, 10Base-T link pulses, or Auto-Negotiation's FLP (Fast Link Pulse). After it detects an incoming signal, it wakes up from power saving mode and operates in normal mode according to the result of the connection. 8.1.8. Power-Down Mode The RTL8309SB implements power-down mode on a per-port basis. Setting MII Reg.0.11 forces the corresponding port of the RTL8309SB to enter power-down mode. This disables all transmit/receive functions, except SMI (Serial Management Interface: MDC/MDIO, also known as MII Management Interface). Single-chip 9-port 10/100Mbps Switch Controller 67 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.1.9. Auto Crossover Detection During the link setup phase, the RTL8309SB checks whether it receives active signals on every port in order to determine if a connection can be established. In cases where the receiver data pin pair is connected to the transmitter data pin pair of the peer device and vice versa, the RTL8309SB will automatically change its configuration to swap receiver data pins with transmitter data pins. In other words, the RTL8309SB adapts automatically to a peer device's configuration. If a port is connected with a crossover cable to a NIC with an MDI-X interface, the RTL8309SB will reconfigure the port to ensure proper connection. This effectively replaces the DIP switch commonly used for reconfiguring a port on a hub or switch. By pulling-up EN_AUTOXOVER, the RTL8309SB identifies the type of connected cable and sets the port to MDI or MDIX. When switching to MDI mode, the RTL8309SB uses TXOP/N as transmit pairs; when switching to MDIX mode, the RTL8309SB uses RXIP/N as transmit pairs. This function is port-based. Pulling-down EN_AUTOXOVER disables this function and the RTL8309SB operates in MDI mode, in which TXOP/N represents transmit pairs and RXIP/N represents receive pairs. IEEE 802.3 compliant forced mode 100M ports with auto crossover have link issues with NWay (Auto-Negotiation) ports. It is recommended to not use auto crossover for forced 100M. 8.2. Switch Core Functional Overview 8.2.1. Address Search, Learning, and Aging When a packet is received, the RTL8309SB uses the least 10 bits of the destination MAC address to index the 1024-entry lookup table, and at the same time compares the destination MAC address with the contents of the 16-entry CAM. If the indexed entry is valid or the CAM comparison is matched, the received packet will be forwarded to the corresponding destination port. Otherwise, the RTL8309SB will broadcast the packet. This is the `Address Search'. The RTL8309SB then extracts the least 10 bits of the source MAC address to index the 1024-entry look-up table. If the entry is not already in the table it will record the source MAC address and add switching information. If this is an occupied entry, it will update the entry with new information. This is called `Learning'. If the indexed location has been occupied by a different MAC address (hash collision), the new source MAC address will be recorded into the 16-entry CAM. The 16-entry CAM reduces address hash collisions and improves switching performance. Address aging is used to keep the contents of the address table correct in a dynamic network topology. The look-up engine will update the time stamp information of an entry whenever the corresponding source MAC address appears. An entry will be invalid (aged out) if it's time stamp information is not refreshed by the address learning process during the aging time period. The aging time of the RTL8309SB is around 300 seconds. Single-chip 9-port 10/100Mbps Switch Controller 68 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.2.2. Flow Control The RTL8309SB supports standard IEEE 802.3x full duplex flow control ability on both transmit and receive sides. If the RTL8309SB recognizes that the resources of the destination port of this packet are being used up, it will issue a `pause on' frame to the source port of this packet with a maximum time as defined in IEEE 802.3x. Once the resource is available, the RTL8309SB sends a `pause off' frame with zero pause time to turn on transmissions. On the receive side, when the RTL8309SB receives a pause control packet on a port, it stops transmitting any packets to this port, except flow control packets, for a period of time specified in the received pause control frame. If it receives another pause control packet in this period of time on the same port, the timer will be updated with the new value specified in the latest pause control packet. The RTL8309SB will re-start transmitting packets on this port after the timer has expired. 8.2.3. Half Duplex Operation In half duplex mode, the CSMA/CD media access method is the means by which two or more stations share a common transmission medium. To transmit, a station waits (defers) for a quiet period on the medium (that is, no other station is transmitting) and then sends the intended message in bit-serial form. If the message collides with that of another station, then each transmitting station intentionally transmits for an additional predefined period to ensure propagation of the collision throughout the system. The station remains silent for a random amount of time (backoff) before attempting to transmit again. When a transmission attempt has terminated due to a collision, it is retried until it is successful. A controlled randomization process called "truncated binary exponential backoff" determines the scheduling of the retransmissions. At the end of enforcing a collision (jamming), the switch delays before attempting to retransmit the frame. The delay is an integer multiple of slotTime (512 bit times). The number of slot times to delay before the nth retransmission attempt is chosen as a uniformly distributed random integer `r' in the range: 0 r < 2k where: k =min (n, backoffLimit). IEEE 802.3 defines the backoffLimit as 10. Single-chip 9-port 10/100Mbps Switch Controller 69 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.2.4. Backpressure The RTL8309SB provides two methods of preventing packet congestion when resources are about to be used up. The first is by colliding incoming packets when the packets are going to a congested port. The second is by sending preambles to defer other station's transmissions. Backpressure: When the switch is overloaded it will assert a jam pattern to collide incoming packets until the congestion condition of the destination port is resolved. The 48 pass 1 mechanism prevents the port being partitioned by excessive collisions. The RTL8309SB will forward one packet successfully after 48 forced collisions. This method carries some risk since the resource may not be available after 48 forced collisions. If the 48 pass 1 function is turned off, the RTL8309SB will always collide incoming packets with a jam pattern. By deferring, the RTL8309SB sends preambles to defer other stations' transmissions. To avoid jabber and excessive deference as defined in IEEE 803.3, the RTL8309SB will pull down the carrier sense signal for a short time and then raise it up it quickly. This short silence time is to prevent other stations seizing the medium and sending packets out. If there are packets to send out during the carrier sense rising up period, carrier sense flow control will be replaced by those packets. After the packets are sent, carrier sense rises up again, repeating the pattern until the system is available. 8.2.5. UTP Port Status Configuration The RTL8309SB supports flexible status configuration via strapping pins for each PHY, En_ANEG, En_FCTRL, Force_Duplex, and Force_Speed, on a group basis. These pins are used to assign the initial values to PHY register 0 and 4 upon reset. The configuration parameters set by these four strapping pins globally control the abilities of each port. For advanced applications requiring configuration on a per-port basis, a serial EEPROM should be attached. If auto negotiation is enabled by strapping pin `En_ANEG', the link status is determined by the result of the auto negotiation process. The default configuration of the RTL8309SB is all abilities enabled (the content of the PHY registers will be Reg0.12=1, Reg4.5=1, Reg4.6=1, Reg4.7=1, Reg4.8=1, and Reg4.10=1). If auto negotiation is disabled by EN_ANEG, the link speed and duplex mode is forced by strapping pins, Force_Duplex and Force_Speed. These two pins have no effect if auto negotiation is enabled. 8.2.6. MII Port (The 9th Port) The RTL8309SB is an 8-port Fast Ethernet switch with one extra MII port for specific applications. It integrates embedded SRAM for packet storage, nine MAC, and eight physical layer transceivers for 10Base-T and 100Base-TX, into a single chip. MII Port Operating Mode The MII port only provides a MAC part to support the MII interface for connection with an external MAC or PHY. Two strapping pins, MII_MODE[1:0], are used to configure this interface to act as MII PHY mode, SNI PHY mode, or MII MAC mode to work with the external MAC of a routing engine, PHY of a HomePNA, or other physical layer transceivers. Single-chip 9-port 10/100Mbps Switch Controller 70 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet If the MII port connects with an external MAC, such as the processor of a router application, it will act as a PHY. This is PHY mode MII, or PHY mode SNI. In PHY mode MII or PHY mode SNI, the MII port uses the MAC part only, and provides an external MAC interface to connect MACs of external devices. In order to connect both MACs, the MII of the switch MAC should be reversed into PHY mode. If the MII port connects with an external PHY, such as the PHY of a HomePNA application, it will act as a MAC. This is MAC mode MII. In MAC mode MII, the MII port uses its MAC to connect to an external PHY and ignores the internal PHY part. The following figures illustrate various utilizations of the ninth port by setting strapping pins. They consist of the following general system applications: * * * * General standalone 8-port switch applications. Router applications. HomePNA applications. Other PHY applications. Router Application HomePNA or Other PHY Application RTL8309SB 10Base-T or 100Base-TX PHYceiver 10/100 MAC 0 RX+-[1] TX+-[1] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 1 RX+-[7] TX+-[7] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 7 Mode Select PHY Mode 10/100 MAC 8 8 LAN Ports RX+-[0] TX+-[0] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 0 RX+-[1] TX+-[1] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 1 RX+-[7] TX+-[7] 10Base-T or 100Base-TX PHYceiver 10/100 MAC 7 Mode Select MAC Mode Interface ADSL or Cable Modem (MII Interface PHY) MAC Mode Interface 13 13 / MAC 13 / MAC 1 WAN Interface Router / 1 WAN Interface 10/100 MAC 8 PHY Mode Switch Fabric, V LAN, QoS, Trunking RX+-[0] TX+-[0] Switch Fabric, V LAN, QoS, Trunking 8 LAN Ports RTL8309SB HomePNA or Other PHYs Figure 3. MII Port Application MII Interface In order to act as a PHY when the MII port is in PHY mode, some pins of the external MAC interface must be changed. For example, TXC are input pins for MAC but output pins for PHY; so the pin MTXC/PRXC is input for MAC mode and output for PHY mode. Refer to Figure 4, on page 72 to check the relationship between the RTL8309SB and the external device. Note: Connect the input of the RTL8309SB to the output of the external device. The RTL8309SB has no RXER, TXER, and CRS pins for MII signaling. Because the RTL8309SB does not support pin CRS, it is necessary to connect the MTXEN/PRXDV (output) of PHY mode to both CRS and RXDV (input) of the external device. Single-chip 9-port 10/100Mbps Switch Controller 71 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet MII Port Status Pins Four signaling pins (MII_LNK_STA#, MII_SPD_STA, MII_DUP_STA, MII_FCTRL_STA) are used to provide operating status to the MII port MAC in real time after reset. This means the external MAC or PHY must be forced to the same port status as the MII port. The MII port automatically detects the link status both from the TXC of the external PHY and MII_LNK_STA#. RTL8309SB x Floating=High Floating=High Pull-down=Link On Note 1 Note 2 Note 3 25M/2.5MHz 102 MII_MODE[0] 65 MRXC/PTXC 101 MII_MODE[1] 66 MRXDV/PTXEN 51 MII_LNK_STA# 70~67 MRXD[3:0]/PTXD[3:0] 49 MII_SPD_STA 50 MII_DUP_STA 56 MTXC/PRXC 48 MII_FCTRL_STA 4 57 MTXEN/PRXDV 4 61~58 MTXD[3:0]/PRXD[3:0] 64 MCOL/PCOL RXC CRS RXDV RXD[3:0] TXC TXEN TXD[3:0] COL VDSL/ HomePNA/ Single PHY MAC mode MII RTL8309SB x Floating=High Pull-down=Link On Note 1 Note 2 Note 3 25M/2.5MHz 102 MII_MODE[0] 56 MTXC/PRXC 101 MII_MODE[1] 57 MTXEN/PRXDV 51 MII_LNK_STA# 61~58 MTXD[3:0]/PRXD[3:0] 49 MII_SPD_STA 50 MII_DUP_STA 48 MII_FCTRL_STA 4 65 MRXC/PTXC 66 MRXDV/PTXEN 70~67 MRXD[3:0]/PTXD[3:0] 4 64 MCOL/PCOL RXC CRS RXDV RXD[3:0] TXC TXEN TXD[3:0] COL CPU/ Processor/ Routing Engine MII PHY mode RTL8309SB Floating=High Pull-down=Link On Pull-down Note 2 Note 3 10MHz 102 MII_MODE[0] 56 MTXC/PRXC 101 MII_MODE[1] 57 MTXEN/PRXDV 51 MII_LNK_STA# 58 MTXD[0]/ PRXD[0] 49 MII_SPD_STA 1 65 MRXC/PTXC 50 MII_DUP_STA 48 MII_FCTRL_STA 66 MRXDV/PTXEN 67 MRXD[0]/ PTXD[0] 1 64 MCOL/PCOL RXC CRS RXDV RXD TXC TXEN TXD COL CPU/ Processor/ Routing Engine SNI PHY mode Note 1: Pulled high or floating sets the speed to 100Mbps. Pulled down sets the speed to 10Mbps. Note 2: Pulled high or floating enables full duplex. Pulled down sets half duplex. Note 3: Pulled high or floating enables flow control or backpressure. Pulled down disables flow control or backpressure. Figure 4. MII Port Operating Mode Overview Single-chip 9-port 10/100Mbps Switch Controller 72 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet MII PHY Mode/SNI PHY Mode In routing applications, the RTL8309SB cooperates with a routing engine to communicate with the WAN (Wide Area Network) through MII/SNI. In MII PHY mode, pulling MII_SPD_STA up results in the MII port operating at 100Mbps with MTXC, and MRXC running at 25MHz. Pulling MII_SPD_STA down results in the MII port operating at 10Mbps with MTXC, and MRXC running at 2.5MHz. In SNI PHY mode, MII_SPD_STA has no effect and should be pulled down. SNI mode operates at 10Mbps only, with MTXC and MRXC running at 10MHz. In SNI mode, the RTL8309SB does not loop back a RXDV signal as a response to TXEN and does not support the heartbeat function (asserting COL signal for each complete TXEN signal). This interface is a bit-wide data interface used with some controllers to function as a network layer protocol in half duplex operation. MII MAC Mode In HomePNA or other PHY applications, the RTL8309SB provides an MII interface to the underlying HomePNA or other physical devices so as to communicate with other types of LAN media. In such applications, MII_MODE[1:0] should be pulled high or be floated upon reset. In HomePNA applications, MII_DUP_STA must be pulled down since HomePNA is half-duplex only. The link speed of the RTL8309SB is determined by RXC and TXC from the PHY of the HomePNA (running at 1Mbps). Thus, the MII_SPD_STA has no effect and should be pulled down for compatibility with HomePNA's PHY. The link state of HomePNA is unstable (a characteristic of the HomePNA 1.0 standard) such that MII_LNK_STA# must be pulled down instead of being wired to the LINK LED pin of the HomePNA. Because the HomePNA PHY physical layer is half duplex and can only detect a collision event during the AID header interval (the time when transmitting the Ethernet preamble), the backpressure flow control algorithm is not suitable for a HomePNA network and MII_FCTRL_STA should be pulled down. For other PHY applications, the strap status set by MII_SPD_STA, MII_DUP_STA, and MII_FCTRL_STA depends on the particular application. MII Port PHY Register The external MAC automatically polls and accesses the internal PHY registers in the RTL8309SB when the MII port is operated in MII PHY mode with auto negotiation enabled. For the auto negotiation process in the CPU to function properly, the RTL8309SB provides PHY register 0, 1, and 4, to virtually provide the MII port's PHY status to the external MAC. Because the MII port of the RTL8309SB does not have a true PHY in it, it does not process the auto negotiation. The contents of PHY registers 4 and 5 should be the same for both terminals of the MII bus when operating on the same link status. Thus, the RTL8309SB does not provide PHY register 5; it only emulates it. If the CPU polls PHY register 5, the RTL8309SB returns the contents of PHY register 4 since it cannot execute the auto negotiation process. If the CPU polls PHY register 4, the RTL8309SB returns the contents of PHY register 4. Single-chip 9-port 10/100Mbps Switch Controller 73 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3. Advanced Functionality Overview 8.3.1. Port-Based VLAN If the VLAN function is enabled by pulling down the Dis_VLAN strapping pin, the default VLAN membership configuration by internal register is the MII port overlapped with all the other ports to form nine individual VLANs. Via an attached serial EEPROM or via SMI, the default configuration may be modified to allow the input ports to join any of the nine VLAN groups: VLAN A, B, C, D, E, F, G, H, and I. Each input port can be a member of more than one VLAN group. Port-based VLAN mapping is the simplest implicit mapping rule. Each incoming frame is assigned to a VLAN based on the input port into which it arrived at the switch. It is not necessary to parse and inspect frames in real-time to determine their VLAN mapping. All frames received on a given input port will be forwarded to members of that port's VLAN group. The RTL8309SB supports nine VLAN indexes to individually index received packets to one of the nine VLAN membership registers. These nine groups of VLAN membership registers, VLAN ID [A] membership bit [8:0] ~ VLAN ID [I] membership bit [8:0], determine which ports are members of this VLAN. The RTL8309SB forwards frames to members of this VLAN only (excluding the input port of this frame). VLAN membership registers descript which port are members in a VLAN member set. A port that is not specified in this port's member set should generally not be receiving and/or transmitting frames for that VLAN. Single-chip 9-port 10/100Mbps Switch Controller 74 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Figure 5 illustrates a typical application. VLAN indexes and VLAN member definitions are set to form three different VLAN groups. VLAN 1 Port 0 VLAN index=0000 P0 Port 1 VLAN index=0000 P1 Port 2 VLAN index=0000 P2 VLAN 2 P3 000000111 MemberB 000111000 MemberC 011000000 MemberD 111000000 MemberE 110000000 MemberF 000000000 MemberG 000000000 MemberH 000000000 MemberI 000000000 Port 3 VLAN index=0001 P4 Port 4 VLAN index=0001 P5 Port 5 VLAN index=0001 P6 MemberA Port 6 VLAN index=0010 P7 Port 7 VLAN index=0011 VLAN 3 P8 Port 8 VLAN index=0100 RTL8309SB VLAN 4 Figure 5. VLAN Grouping Example In cases where VLAN and trunking are both enabled at the same time, a situation may occur where a packet is forwarded to a trunk but one of the members of this trunk is not in the same VLAN group associated with the source port. In this situation, the VLAN function has higher priority than the trunking operation. The packet will not be forwarded to the port of this trunk. For non-VLAN tagged frames, the RTL8309SB performs port-based VLAN. It will use Port n VLAN index [3:0] to index to a VLAN membership. The VLAN ID associated with this indexed VLAN membership is the Port VID (PVID) of this port. Single-chip 9-port 10/100Mbps Switch Controller 75 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.2. 802.1Q Tagged-VID based VLAN 802.1Q tagged-VID based VLAN mapping uses a 12-bit explicit identifier in the VLAN tag to associate received packets with a VLAN. Nine groups of VLAN membership registers, VLAN ID [A] membership [8:0] ~ VLAN ID [I] membership [8:0], consist of ports that are in the same VLAN corresponding to the registers defined in VLAN ID [A] [11:0] ~ VLAN ID [I] [11:0]. If the VID of a VLAN-tagged frame does not hit the VLAN ID [A] [11:0] ~ VLAN ID [I] [11:0], then the RTL8309SB performs port-based VLAN mapping to the member set indexed by the Port n VLAN index [3:0]. Otherwise, the RTL8309SB compares the explicit identifier in the VLAN tag with the nine VLAN registers to determine the VLAN association of this frame, then forwards it to the member set of this VLAN. Two VIDs are reserved for special purposes. One of them is all ones and is currently unused. The other is all zeros and indicates a priority tag, which is treated as an untagged frame. When 802.1Q tag aware VLAN is enabled, the RTL8309SB performs 802.1Q tag-based VLAN mapping for tagged frames, but performs port-based VLAN mapping for untagged frames. If 802.1Q tag-aware VLAN is disabled, the RTL8309SB performs only port-based VLAN mapping both for non-tagged and tagged frames. Figure 6 illustrates the processing flow when 802.1Q tag aware VLAN is disabled. Un-tagged Tagged Length/Type SA DA Length/Type 802.1Q Tag SA DA ------ ------ P0 P0VLANIndex=0000 P1 P2 P3 Search VID table P4 P5 P6 VIDA=12'h001 MemberA 1 0 0 0 0 0 0 0 1 VIDB=12'h0ff MemberB 1 0 0 0 0 0 0 1 0 VIDC=12'h1ff MemberC 1 0 0 0 0 0 1 0 0 VIDD=12'h2ff MemberD 1 0 0 0 0 1 0 0 0 VIDE=12'h3ff MemberE 1 0 0 0 1 0 0 0 0 VIDF=12'h4ff MemberF 1 0 0 1 0 0 0 0 0 VIDG=12'h5ff MemberG 1 0 1 0 0 0 0 0 0 VIDH=12'h6ff MemberH 1 1 0 0 0 0 0 0 0 VIDI=12'h7ff MemberI 1 1 1 1 1 1 1 1 1 P7 Length/Type SA DA Length/Type 802.1Q Tag SA DA ------ RTL8309SB P8 ------ Figure 6. Tagged and Untagged Packet Forwarding When 802.1Q Tag Aware VLAN is Disabled Two VLAN ingress filtering functions are supported by the RTL8309SB in registers. One is the `admit VLAN tagged frame' function, which provides the ability to receive VLAN-tagged frames only. Untagged or priority tagged (VID=0) frames will be dropped. The other is the `ingress member set filtering', which will drop frames if the receive port is not in the member set. There are also two optional egress filtering functions supported by the RTL8309SB through strapping. One is `Leaky VLAN', which enables inter-VLAN unicast packet forwarding. That is, if the layer 2 look-up table search has a hit, then the unicast packet will be forwarded to the egress port, ignoring the egress rule. The other is `ARP VLAN', which broadcasts ARP packets to all other ports, ignoring the egress rule. Single-chip 9-port 10/100Mbps Switch Controller 76 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.3. QoS Operation The RTL8309SB can recognize the QoS priority information of incoming packets to give a different egress service priority. The RTL8309SB identifies the packets as high priority based on several types of QoS priority information: * Port-based priority * 802.1p/Q VLAN priority tag * TCP/IP's TOS/DiffServ (DS) priority field * IP Address There are two priority queues; a high-priority queue and a low-priority queue. The queue service rate is based on the Weighted Round Robin algorithm. The packet-based service weight ratio of the high-priority queue and low-priority queue can be set to 4:1, 8:1, 16:1 or `Always high priority first' by hardware pins upon reset, or internal register via SMI after reset. Port-Based Priority When port-based priority is applied, packets received from the high-priority port are sent to the high-priority queue of the destination port. High priority ports can be partially set by hardware pins, and wholly configured in internal registers. 802.1p-Based Priority When 802.1p VLAN tag priority applies, the RTL8309SB recognizes the 802.1Q VLAN tag frames and extracts the 3-bit User Priority information from the VLAN tag. The RTL8309SB sets the threshold of User Priority as 3. Therefore, VLAN tagged frames with User Priority value = 4~7 will be treated as high priority frames, other User Priority values (0~3) as low priority frames (follows 802.1p standard). The threshold value can be modified in internal registers via an SMI interface or configured in EEPROM. DiffServ-Based Priority When TCP/IP's TOS/DiffServ(DS) based priority is applied, the RTL8309SB recognizes TCP/IP Differential Services Code Point (DSCP) priority information from the DS-field defined in RFC2474. The DS field byte for the IPv4 is a Type-of-Service (TOS) octet. The recommended DiffServ Code Point is defined in RFC2597 to classify the traffic into different service classes. The RTL8309SB extracts the codepoint value of DS-fields from IPv4 packets and identifies the priority of the incoming IP packet following the definition below: High priority: where the DS-field = (EF, Expected Forwarding:) 101110 (AF, Assured Forwarding:) 001010; 010010; 011010; 100010 (Network Control:) 110000 and 111000 Differential service code point [A] specified in internal register; Differential service code point [B] specified in internal register; Low priority: where the DS-field = other values. The VLAN tagged frame and 6-bit DS-field in the IPv4 frame format is shown below: Single-chip 9-port 10/100Mbps Switch Controller 77 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 109. 802.1Q VLAN Tag Frame Format 6 bytes DA 6 bytes SA 2 bytes 81-00 3 bits User-Priority (0~3:Low-pri; 4~7: High-pri) ---- Table 110. IPv4 Frame Format 6 bytes DA 6 bytes SA 4 bytes 802.1Q Tag (optional) 2 bytes 08-00 4 bits Version IPv4= 0100 4 bits 6 bits IHL TOS[0:5]= DSfield ---- IP-Based Priority When IP-based based priority is applied, any incoming packets with IP priority equal to IP address [A] AND IP mask [A] or IP address [B] AND IP mask [B] will be treated as high priority packets. IP priority [A] and IP priority [B] may be enabled or disabled independently. Flow Control Auto Turn Off The RTL8309SB can be configured to turn off 802.3x flow control and backpressure flow control for 1~2 seconds whenever the port receives VLAN-tagged or TOS/DS high priority frames. Flow control is re-enabled when no priority frame is received for a 1~2 second duration. The purpose of this function is to avoid head-of-line blocking on priority classification. 8.3.4. Insert/Remove VLAN Priority Tag The RTL8309SB supports four types of insertion/removal of VLAN tags in packet, controlled by internal registers on a perport basis. They are classified as follows: Type 11: Do not change packets (Default). Type 10: Insert input port's PVID for non-tagged packets. Do not change packets if they are already tagged. Type 01: Remove VLAN tags from tagged packets. Do not change packets if they are not tagged. Type 00: Remove VLAN tags from tagged packets then insert the input port's PVID. For non-tagged packets, insert the input port's PVID. In Type 10, if Null VID replacement is enabled, this function has higher priority than type 10. If both type 10 is selected and Null VID replacement is enabled, the RTL8309SB inserts a PVID to non-tagged packets and replaces a null VID with a PVID for tagged packets, and does nothing in tagged packets with a non-null VID. If the tag removed frame is less than 64 bytes, it will be padded with an 0x20 pattern before the packet's CRC field to fit the 64-byte minimum packet length of the IEEE 802.3 spec. The RTL8309SB will recalculate the FCS (Frame Check Sequence) if the frame has been changed. Single-chip 9-port 10/100Mbps Switch Controller 78 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.5. Port VID (PVID) In a router application, the router may want to know which input port this packet came from. The RTL8309SB supports Port VID (PVID) for each port to insert a PVID in the VLAN tag on an egress packet. The VID information carried in the VLAN tag will be changed to a PVID. The RTL8309SB also provides an option to admit VLAN-tagged packets with a specific PVID only. When this function is enabled, packets with an incorrect PVID and non-tagged packets will be dropped. The RTL8309SB uses an internal register, `Port n VLAN index [3:0]' to index to a VLAN membership. The VLAN ID associated with this indexed VLAN membership is the PVID for this port. Users may select VLAN insert/remove type 10 or 00 to insert a PVID on egress packets. On 802.1Q tag-based VLANs do not use a port-based VLAN in PVID applications, as the VID information carried in the VLAN tag will be replaced with a PVID. 8.3.6. Port Trunking The RTL8309SB can combine two UTP ports into one trunking port (with a balancing mechanism). The default configuration is to combine port 0 and 1 as one trunk, even if they are operating with different duplex or speed settings. If port 0 and/or port 1 are assigned as a high priority port, this trunk will also be considered as a high priority trunk when the trunking function is enabled. The RTL8309SB also provides the option to set port 6 and port 7 as a trunk by configuring the `trunking port assignment' bit in the internal register. 8.3.7. ISP MAC Address Translation Some Internet Service Providers only provide service to a single pre-registered MAC address. To share the Internet Service with more than one station, the RTL8309SB translates the MAC address of multiple NICs to the ISP registered MAC address. Figure 7, page 80, illustrates an outbound process. When station G tries to send a packet to the WAN, it broadcasts or unicasts this packet to the CPU port with a NIC MAC address. After the CPU receives this packet, it translates this MAC address to the ISP registered MAC address and stores this information in its mapping table. It then forwards this packet to the WAN port through the CPU port. The RTL8309SB will not learn this packet into it's forwarding table. This is a special learning mechanism, which states that any frame coming from the CPU port with a source MAC address equal to internal register `ISP MAC [47:0]' will not be learned. This function must be correctly configured in the VLAN configuration, otherwise the RTL8309SB will drop such packets. Single-chip 9-port 10/100Mbps Switch Controller 79 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Router CPU MII I/F Special Learning CPU Port RTL8309SB VLAN 1 VLAN 2 P1 P2 P3 P4 P5 P6 P7 P8 WAN Port ISP Server WAN MAC ISP MAC Data PC A PC B PC C PC D PC E PC F PC G WAN CPU MAC PC G MAC Data Figure 7. ISP MAC Outbound Process In the inbound process, when the RTL8309SB receives a packet from the WAN port, it will be directly forwarded to the CPU port according to the VLAN 1 configuration. The CPU looks up the mapping table to reverse translate the destination MAC address from the ISP MAC to the MAC address of the station G NIC. Figure 8 illustrates this inbound process. Router CPU Special Forwarding MII I/F CPU Port VLAN 1 P1 WAN Port ISP Server Data WAN MAC RTL8309SB VLAN 2 P2 P3 P4 P5 P6 P7 P8 ISP MAC PC A PC B PC C PC D PC E PC F PC G WAN Data CPU MAC PC G MAC Figure 8. ISP MAC Inbound Process Single-chip 9-port 10/100Mbps Switch Controller 80 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.8. Lookup Table Access The RTL8309SB supports registers for the CPU to read/write to an internal 1024-entry lookup table via the SMI interface. Before reading/writing from/to the internal forwarding table, the contents of internal register `Indirect Access Control [15:0]' should be filled correctly. In a write cycle, the user must assign the write data in register `Indirect Access Data [63:0]' first. Bits 1~0 along with bits 15~8 form a 10-bit field that indirectly maps to an entry in the lookup table. To execute a write access, bit 0 in the `Indirect Access Control' register should be set to 0, and bit 1 should be set to 1. The CPU will poll bit 1 in `Indirect Access Control' to determine whether the write access is complete or not. The 10-bit field composed of bits 1~0 and bits 15~8 in PHY7 Reg.20 indirectly maps to an entry in the lookup table for reading. The read back data is shown in PHY7 Reg.17~20. To execute read access, bit 0 in the `Indirect Access Control' register should be set to 1, and bit 1 should be set to 1 to trigger this command. The CPU will poll bit 1 in `Indirect Access Control' to determine whether read access is complete or not. 8.3.9. Serial Management Interface (SMI) SMI is also known as the MII Management Interface. It consists of two signals (MDIO and MDC) that allow an external device in SMI master mode (MDC is output) to control the state of PHY, and in SMI slave mode (MDC is input) to control the internal register. MDC is an input clock for the RTL8309SB to latch MDIO on its rising edge. The clock can run from 0MHz to 25MHz. MDIO is a bi-directional signal that is used to write data to, or read data from, the RTL8309SB. Table 111 shows the read and write cycle format of the RTL8309SB. Table 111. SMI Read/Write Cycles Read Write Preamble (32 bits) 1........1 1........1 Start (2 bits) 01 01 OP Code (2 bits) 10 01 PHYAD (5 bits) A4A3A2A1A0 A4A3A2A1A0 REGAD (5 bits) R4R3R2R1R0 R4R3R2R1R0 Turn Around Data (2 bits) (16 bits) Z0 D15.......D0 10 D15.......D0 Idle Z* Z* *Z: high-impedance. During idle time, an external 1.5K pull-up resistor determines MDIO state. The RTL8309B supports Preamble Suppression, which allows the MAC to issue Read/Write Cycles without preamble bits. However, for the first cycle of MII management after power-on reset, a 32-bit preamble is needed. To guarantee the first successful SMI transaction after power-on reset, an external device should delay at least 1 second before issuing the first SMI Read/Write Cycle relative to the rising edge of reset. The output voltage level of the RTL8309SB is configurable by supplying different voltages to pin VDDIO. VDDIO can be supplied with either 2.5V or 3.3V power. Single-chip 9-port 10/100Mbps Switch Controller 81 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.10. Broadcast Storm Control After 64 consecutive broadcast packets (DID=FFFF-FFFF-FFFF) have been received by a particular port, any following incoming broadcast packets will be discarded by this port for approximately 800ms. Any non-broadcast packet can reset the time window and broadcast counter such that the scheme restarts. Note: Trigger condition is consecutive 64 DID = FFFF-FFFF-FFFF packets. Release condition: receive non-broadcast packet on or after 800ms. 8.3.11. Broadcast In/Out Drop If some destination ports are blocking and the buffer is full, broadcast frames are dropped according to the internal configuration. There are two options: Broadcast Input Drop Forwards any broadcast packet to any output port and will drop packets at the source port directly. Although this function effectively reduces the loading on the RTL8309SB, packets broadcast to non-congested ports will also be dropped. Broadcast Output Drop Only forwards broadcast packets to non-congested ports. But if a dropped packet is re-transmitted by a higher protocol in the congested port, the non-congested port will receive duplicate packets. Figure 9 illustrates this concept. 1. Input Drop: Drop the frame directly. Do not forward to any port 2. Output Drop: Forward only to non-blocking ports (broadcast becomes multicast) 1. Broadcast packet from Port 0 2. Buffer of Port 7 is full, others are not full Output Drop: Input Drop: Port 0 1 2 3 4 5 6 Port 0 7 1 2 3 4 5 6 7 Full Full Rx: Rx: Figure 9. Input Drop vs. Output Drop Single-chip 9-port 10/100Mbps Switch Controller 82 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.12. EEPROM Configuration Interface The EEPROM interface is a 2-wire serial EEPROM interface providing 2K bits of storage space. The external device connected to the RTL8309SB should be 2.5V or 3.3V depending on the VDDIO setting. 8.3.13. 24LC02 Device Operation Clock and Data transitions: The SDA pin is normally pulled high with an external resistor. Data on the SDA pin may change only during SCL low periods. Data changes during SCL high periods will indicate a start or stop condition as defined below. Start Condition: A high-to-low transition of SDA with SCL high is the start condition and must precede any other command. Stop Condition: A low-to-high transition of SDA with SCL high is a stop condition. Acknowledge: All addresses and data are transmitted serially to and from the EEPROM in 8-bit words. The 24LC02 sends a zero to acknowledge that it has received each word. This happens during the ninth clock cycle. Random Read: A random read requires a `dummy' byte write sequence to load in the data word address. Sequential Read: For the RTL8309SB, the sequential reads are initiated by a random address read. After the 24LC02 receives a data word, it responds with an acknowledgement. As long as the 24LC02 receives an acknowledgement, it will continue to increment the data word address and clock out sequential data words in series. SDA SCL Start Stop Figure 10. Start and Stop Definition Single-chip 9-port 10/100Mbps Switch Controller 83 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet SCL 1 8 9 Data In Data Out Start Acknowledge Figure 11. Output Acknowledge Start Write Device Address Start Word Address n Stop Read Device Address SDA Data n R/W ACK ACK ACK NO ACK Dummy Write Figure 12. Random Read Read ACK Stop ACK Device Address SDA Data n R/W Data n+1 ACK ACK Data n+x ACK NO ACK Figure 13. Sequential Read 8.3.14. Head-of-Line Blocking The RTL8309SB incorporates an advanced mechanism to prevent Head-Of-Line blocking problems when flow control is disabled. When the flow control function is disabled, the RTL8309SB first checks the destination address of the incoming packet. If the destination port is congested, the RTL8309SB will discard this packet to avoid blocking the next packet, which is going to a non-congested port. Single-chip 9-port 10/100Mbps Switch Controller 84 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.15. MII Port Diagnostic Loopback The RTL8309SB provides a MAC loopback function on the MII port to detect cable problems or far end existence. When this function is enabled, the RTL8309SB will forward local and broadcast packets from the input of the MII port to the output of the MII port, and drop unicast packets from the input of the MII port. The other port can still forward broadcast or unicast packets to the MII port. This is especially useful for router application mass production tests. Example1: LoopBack in External MAC Mode RTL8309SB CPU MII Example2: LoopBack in UTP Mode RTL8309SB UTP RTL8139 PCI CPU Figure 14. MII Port Loopback Single-chip 9-port 10/100Mbps Switch Controller 85 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.16. Loop Detection Loops should be avoided between switch applications. The simplest loop as shown below results in: 1) Unicast frame duplication; 2) Broadcast frame multiplication; 3) Address table non-convergence. Frames may be transmitted from Switch1 to Switch2 via Link1, then returned to Switch1 via Link2. Switch 1 Link1 Link2 Switch 2 Figure 15. Loop Example When the loop detection function is enabled, the RTL8309SB periodically sends out a broadcast packet every 3~5 minutes and automatically detects whether there is a network loop (or bridge loop). If a loop is detected the LoopLED# will be ON (active low or high). The LED goes out when the network loop no longer exists. The Loop frame length is 64 bytes and its format is shown below. FFFF FFFF FFFF Table 112. Loop Frame Format SID 8899 0300 000...0000 CRC In order to achieve loop detection, each switch device needs a unique SID (the source MAC address). If the EEPROM is not used, a unique SID should be assigned via SMI after reset, and the default SID (0x52 54 4c83 09 b0) should not be used. Single-chip 9-port 10/100Mbps Switch Controller 86 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 8.3.17. LEDs (Light Emitting Diodes) The RTL8309SB supports four parallel LEDs for each port, and one special LED (LOOPLED#). Each port has four LED indicator pins. Each pin may have different indicator meanings set by pins LED_MODE[2:0]. Refer to the pin descriptions for details (see Port LED Pins, on page 9). Upon reset, the RTL8309SB supports chip diagnostics and LED functions by blinking all LEDs once for 320ms. This function can be disabled by asserting EN_RST_BLNK to 0. LED_BLNK_TIME determines the LED blinking period for activity and collision (1 = 43ms and 0 = 120ms). All LED pins are dual function pins: input operation for configuration upon reset, and output operation for LED after reset. If the pin input is floating upon reset, the pin output is active low after reset. Otherwise, if the pin input is pulled down upon reset, the pin output is active high after reset. Below is an example circuit for LEDs. The typical value for pull-down resistors is 10K. Floating Pull-down 1.8V LED Pin RTL8309SB 10K ohm RTL8309SB LED Pin Figure 16. Floating and Pull-down of LED Pins For two-pin Bi-color LED mode, Bi-color Link/Act and Speed can be used for one Bi-color LED package, which is a single LED package with two LEDs connected in parallel with opposite polarity. As all LED pins are dual function pins, strapping LED pins to high or low will affect their active status. In Bi-color LED mode, the Link/Act and Speed LED pins may both be strapped to high or low but their active status will be opposed. Note: For Bi-color LEDs, the 1.8V supply voltage may not be sufficient to turn the LED on. The application schematic in Figure 19, on page 89, illustrates how to directly utilize 7.5 ~ 12V from the DC adapter as the power source for Bi-color LEDs. Single-chip 9-port 10/100Mbps Switch Controller 87 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 113. Speed and Bi-Color Link/Act Truth Table Indication No Link 100M Link 10M Link 100M Act 10M Act Speed:Input=Floating, Active Low. Bi-Color Link/Act: the active status of LED_ADD is the opposite of LED_SPD and does not interact with input upon reset. Bi-Color State Speed Link/Act Both Off 1 1 Green On 0 1 Yellow On 1 0 Green Flash 0 Flash Yellow Flash 1 Flash Speed:Input=Pull-down, Active High. Bi-Color Link/Act: the active status of LED_ADD is the opposite of LED_SPD and does not interact with input upon reset. Speed Link/Act 0 0 1 0 0 1 1 Flash 0 Flash Yellow Speed LED Link/Act LED Green Figure 17. Two-Pin Bi-Color LED for SPD Floating or Pull-high Yellow Speed LED Link/Act LED Green Figure 18. Two-Pin Bi-Color LED for SPD Pull-down Single-chip 9-port 10/100Mbps Switch Controller 88 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Strapping High Strapping Low 7.5 ~12V 0.5K 7.5 ~12V 0.5K 0.5K Bi-color LED Speed LED BJT BJT 0.5K Bi-color LED Link/Act LED Speed LED BJT BJT Link/Act LED 50 Figure 19. Bi-Color LED Reference Schematic Single-chip 9-port 10/100Mbps Switch Controller 89 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 9. Characteristics 9.1. Absolute Maximum Ratings WARNING: Absolute maximum ratings are limits beyond which permanent damage may be caused to the device, or device reliability may be affected. All voltages are specified reference to GND unless otherwise specified. Table 114. Absolute Maximum Ratings Parameter Storage Temperature Supply Voltage Referenced to GND: VDDD, VDDA, and 1.8V VDDIO Supply Voltage Referenced to GND: 2.5V VDDIO Supply Voltage Referenced to GND: 3.3V VDDIO Digital Input Voltage DC Output Voltage Min -55 GND-0.5 Max +150 +2.16 Units C V GND-0.5 GND-0.5 GND-0.5 GND-0.5 +3.00 +3.96 VDDD VDDD V V V V Min 0 1.71 Max +70 1.89 Units C V 2.375 3.15 2.625 3.45 V V 9.2. Operating Range Table 115. Operating Range Parameter Ambient Operating Temperature (Ta) 1.8V VDDD, VDDA, and VDDIO Supply Voltage Range 2.5V VDDIO Supply Voltage Range 3.3V VDDIO Supply Voltage Range 9.3. DC Characteristics Table 116. DC Characteristics Parameter Power Supply Current for 1.8V Total Power Consumption for all ports TTL Input High Voltage SYM Condition Icc 10Base-T, idle 10Base-T, Peak continuous 100% utilization 100Base-TX, idle 100Base-TX, Peak continuous 100% utilization Power saving Power down PS 10Base-T, idle 10Base-T, Peak continuous 100% utilization 100Base-TX, idle 100Base-TX, Peak continuous 100% utilization Power saving Power down Vih VDDIO = 1.8V VDDIO = 3.3V Single-chip 9-port 10/100Mbps Switch Controller 90 Min 117.4 928.2 718.3 721.6 Typical 130.5 943.1 743.4 743.8 Max 143.6 958.0 765.2 769.3 115.9 140.9 198.4 1584.6 1223.6 1230.0 126.8 134.9 234.9 1697.6 1338.1 1338.8 137.7 146.9 271.4 1810.6 1446.2 1454.0 196.1 253.6 1.5 2.0 228.2 242.8 - 260.3 264.4 - Units mA mW V Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Parameter TTL Input Low Voltage TTL Input Current TTL Input Capacitance Output High Voltage Output Low voltage Output Three State Leakage Current SYM Condition Vil VDDIO = 1.8V VDDIO = 3.3V Iin Cin Voh VDDIO = 1.8V VDDIO = 3.3V Vol VDDIO = 1.8V VDDIO = 3.3V |IOZ| Min -10 1.7 2.6 0.0 0.0 - Typical 3 - Max 0.8 0.8 10 3.6 0.4 0.4 10 Units V - - 40 mA 0 - - uA - - 100 mA 0 - - A - 1.8 - V - 2.4 - k - 2.4 - k uA pF V V A Transmitter, 100Base-TX (1:1 Transformer Ratio) TX+/- Output Current High TX+/- Output Current Low IOH IOL Transmitter, 10Base-T (1:1 Transformer Ratio) TX+/- Output Current High TX+/- Output Current Low IOH IOL Receiver, 100Base-TX RX+/- Common-mode input voltage RX+/- Differential input resistance Receiver, 10Base-T Differential Input Resistance 9.4. AC Characteristics Table 117. AC Characteristics Parameter SYM Differential Output Voltage, Peak-to-Peak Differential Output Voltage Symmetry Differential Output Overshoot Rise/Fall Time Rise/Fall Time Imbalance VOD VOS VOO tr ,tf Min Typical Max Units 0.997 1.002 1.008 V 100.8 101.3 101.9 % Percent of Vp+ or Vp- 3.20 3.68 4.31 % 10-90% of Vp+ or Vp- 3.61 10 3.73 30 3.82 80 ns ps 20 40 90 ps 675 825 900 ns 2.30 2.31 2.32 V 15.72 15.73 15.76 ms |tr - tf| Duty Cycle Distortion Timing Jitter Differential Output Voltage, Peak-to-Peak TP_IDL Silence Duration Condition Transmitter, 100Base-TX 50 from each output to Vcc, Best-fit over 14 bit times 50 from each output to Vcc, |Vp+|/ |Vp-| VOD Deviation from best-fit time-grid, 010101 ... Sequence Idle pattern Transmitter, 10Base-T 50 from each output to Vcc, all pattern Period of time from start of TP_IDL to link pulses or period of time between link pulses Single-chip 9-port 10/100Mbps Switch Controller 91 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Parameter TD Short Circuit Fault Tolerance TD Differential Output Impedance (return loss) TD Common-Mode Output Voltage Transmitter Output Jitter RD Differential Output Impedance (return loss) Harmonic Content SYM Ecm Condition Peak output current on TD short circuit for 10 seconds. Return loss from 5MHz to 10MHz for reference resistance of 100 . Terminate each end with 50 resistive load. Return loss from 5MHz to 10MHz for reference resistance of 100 . dB below fundamental, 20 cycles of all ones data Min 245 Typical 254 Max 273 Units mA 24.0 24.5 25.0 dB 40.2 44.3 45.1 mV 6.4 24.0 8.5 24.5 11.5 25.0 ns dB 28.0 28.3 28.5 dB 9.5. Digital Timing Characteristics MRXC/PTXC, MDC Th Ts MRXD/PTXD[3: 0], MRXDV/PTXEN, MCOL, MDIO Figure 20. Reception Data Timing of MII/SNI/SMI Interface MRXC/PTXC, MDC Tcyc Tos Toh MRXD/PTXD[3: 0], MRXDV/PTXEN, MCOL, MDIO Figure 21. Transmission Data Timing of MII/SNI/SMI Interface Single-chip 9-port 10/100Mbps Switch Controller 92 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 118. Digital Timing Characteristics Parameter 100BaseT MTXC/MRXC, MRXC/PTXC 10BaseT MTXC/MRXC, MRXC/PTXC MTXD[3:0]/PRXD[3:0], MTXEN/PRXDV Output Setup Time MTXD[3:0]/PRXD[3:0], MTXEN/PRXDV Output Hold Time MRXD[3:0]/PTXD[3:0], MRXDV/PTXEN, MCOL/PCOL Setup Time MRXD/PTXD, MRXDV/PTXEN, MCOL/PCOL Hold Time Parameter SYM I/O Tcyc Condition MAC Mode MII Timing MTXC/MRXC, MRXC/PTXC clock cycle time Min Type O 22 4050 ppm 40050 ppm 24 Tcyc MTXC/MRXC, MRXC/PTXC clock cycle time I Tos Output Setup time from REFCLK rising edge to MTXD[3:0]/PRXD[3:0], MTXEN/PRXDV 26 ns Toh Output Hold time from REFCLK rising edge to MTXD[3:0]/PRXD[3:0], MTXEN/PRXDV O 14 16 18 ns Ts MTXD[3:0]/PRXD[3:0], MRXDV/PTXEN to REFCLK rising edge setup time I 4 ns Th MTXD[3:0]/PRXD[3:0], MRXDV/PTXEN to REFCLK rising edge hold time I 2 ns SYM Condition PHY Mode MII Timing MTXC/MRXC, MRXC/PTXC, PHY2PTXC, PHY2PRXC clock cycle time MTXC/MRXC, MRXC/PTXC, PHY2PTXC, PHY2PRXC clock cycle time I/O Min 100BaseT MTXC/MRXC, MRXC/PTXC, 10BaseT MTXC/PRXC, MRXC/PTXC, MTXD/PRXD[3:0], MTXEN/PRXDV, MCOL/PCOL, Output Setup Time MTXD/PRXD[3:0], MTXEN/PRXDV, MCOL/PCOL, Output Hold Time MRXD/PTXD[3:0], MRXDV/PTXEN, Setup Time MRXD/PTXD[3:0], MRXDV/PTXEN, Hold Time Tcyc MTXC/MRXC, MRXC/PTXC MTXD/PRXD[0], MTXEN/PRXDV, MCOL/PCOL Output Setup Time MTXD/PRXD[0], MTXEN/PRXDV, MCOL/PCOL Output Hold Time MRXD/PTXD[0], MRXDV/PTXEN Setup Time Tcyc Tcyc Tos I O Type Max Units ns ns Max ns 4050 ppm 40050 ppm O Units ns Output Setup time from REFCLK rising edge to MTXD[3:0]/PRXD[3:0], PHY2PRXD[3:0], MTXEN/PRXDV, PHY2PRXDV MCOL/PCOL, PHY2PCOL Output Hold time from REFCLK rising edge to MTXD[3:0]/PRXD[3:0], MTXEN/PRXDV, MCOL/PCOL O 14 16 18 ns O 22 24 26 ns Ts MTXD[3:0]/PRXD[3:0], MRXDV/PTXEN to REFCLK rising edge setup time I 4 ns Th MTXD[3:0]/PRXD[3:0], MRXDV/PTXEN to REFCLK rising edge hold time I 2 ns Toh PHY Mode SNI Timing MTXC/PRXC, MRXC/PTXC clock cycle time O Tos Output Setup time from REFCLK rising edge to MTXD[0]/PRXD[0], MTXEN/PRXDV, MCOL/PCOL O 28 10050 ppm 30 Toh Output Hold time from REFCLK rising edge to MTXD[0]/PRXD[0], MTXEN/PRXDV, MCOL/PCOL O 68 70 Ts MTXD[0]/PRXD[0], MRXDV/PTXEN to REFCLK rising edge setup time I 4 Single-chip 9-port 10/100Mbps Switch Controller 93 ns 32 ns 72 ns ns Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Parameter MTXD/PRXD[0], MTXEN/PRXDV, MCOL/PCOL Hold Time LED On Time LED Off Time SYM Condition Th MTXD[0]/PRXD[0], MRXDV/PTXEN to REFCLK rising edge hold time I/O I Min 2 Type O O 43 43 - LED Timing tLEDon While LED blinking tLEDoff While LED blinking Max Units ns 120 120 ms ms 9.6. Thermal Characteristics Heat generated by the chip causes a temperature rise of the package. If the temperature of the chip (Tj, junction temperature) is beyond the design limits, there will be negative effects on operation and the life of the IC package. Heat dissipation, either through a heat sink or electrical fan, is necessary to provide a reasonable environment (Ta, ambient temperature) in a closed case. As power density increases, thermal management becomes more critical. A method to estimate the possible Ta is outlined below. Thermal parameters are defined as below according to JEDEC standard JESD 51-2, 51-6: 1. 2. ja (Thermal resistance from junction to ambient), represents resistance to heat flow from the chip to ambient air. This is an index of heat dissipation capability. A lower ja means better thermal performance. ja = (Tj - Ta) / Ph Where Tj is the junction temperature Ta is the ambient temperature Ph is the power dissipation jc (Thermal resistance from junction to case), represents resistance to heat flow from the chip to the package top case. jc is important when an external heat sink is attached on the package top. jc = (Tj - Tc) / Ph, where Tj is the junction temperature Ta Tc Tj Figure 22. Cross-section of 128-Pin PQFP Table 119. Thermal Operating Range Parameter Junction operating temperature Ambient operating temperature SYM Tj Condition Ta Single-chip 9-port 10/100Mbps Switch Controller Min 0 0 94 Typical Max 25 125 25 70 Units C C Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Table 120. Thermal Resistance Parameter Thermal resistance: junction to ambient Thermal resistance: junction to case SYM ja jc Condition 2 layer PCB, 0 ft/s airflow, ambient temperature 25C 2 layer PCB, 0 ft/s airflow, ambient temperature 25C Min - Typical Max 36.7 16.7 - Units C/W C/W * PCB conditions (JEDEC JESD51-7). Dimensions: 85 x 11mm. Thickness: 1.6mm 10. System Applications Broadband gateway/firewall/VPN Wireless LAN access point + gateway Home networking expansion Standalone 10/100 switch Small workgroup switch VoIP infrastructure switch Single-chip 9-port 10/100Mbps Switch Controller 95 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 11. Design and Layout Guide In order to achieve maximum performance using the RTL8309SB, good design attention is required throughout the design and layout process. The following are some recommendations on how to implement a high performance system. General Guidelines * Provide a good power source, minimizing noise from switching power supply circuits (<50mV). * Keep power and ground noise levels below 50mV. * Verify the ability of critical components, e.g., clock source and transformer, to meet application requirements. * Use bulk capacitors (4.7F-10F) between the power and ground planes. * Use 0.1F de-coupling capacitors to reduce high-frequency noise on the power and ground planes. * Keep de-coupling capacitors as close as possible to the RTL8309SB. Differential Signal Layout Guidelines * Keep differential pairs as close as possible and route both traces as identically as possible. * Avoid vias and layer changes if possible. * Keep transmit and receive pairs away from each other. Run orthogonal or separate by a ground plane. * Keep each different pair on the same plane. Clock Circuit * The clock should be 25M 100ppm with jitter less than 0.5ns. * If possible, surround the clock by ground trace to minimize high-frequency emissions. Power Planes * Divide the power plane into 1.8V digital, 1.8V analog. * Use 0.1F decoupling capacitors and bulk capacitors between each power plane and ground plane. * Place two 47F bulk capacitors on the device-side (primary) center tap of the transformer. Ground Plane * Keep the system ground region as one continuous, unbroken plane that extends from the primary side of the transformer to the rest of the board. * Place a moat (gap) between the system ground and chassis ground. * Ensure the chassis ground area is voided at some point such that no ground loop exists on the chassis ground area. Single-chip 9-port 10/100Mbps Switch Controller 96 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Transformer Options The RTL8309SB can use a transformer that supports auto MDIX with a 1:1 turn ratio on both transmit and receive paths. There are many venders improving their transformer design to meet the RTL8309SB's requirement. Vendor Pulse Magnetic 1 BothHand Macronics Quad H1164 ML164 40ST1041AX HS2275 The center taps on the primary side of the transmit and receive paths in the transformer should be connected together inside the transformer and provide one common external pin (Figure 23). This common pin should connect to 1.8V directly and connect to ground via a 0.1F capacitor as shown in Figure 23. This schematic will force the signal on the primary side to bias at 1.8V. RXIP RXIN Transformer 1:1 50 1% 50 1% RJ-45 1 2 0.1F AGND 3 1.8V 4 RTL8309SB TXOP TXON 5 0.1F AGND 1:1 50 1% 6 7 0.1F 50 1% AGND 8 75 IBREF 75 75 2, 1% 0.01F/1KV AGND Chassis GND Figure 23. Application for Transformer with Connected Central Tap Single-chip 9-port 10/100Mbps Switch Controller 97 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet Bob Smith Termination `Bob Smith' termination is often provided for the unused signal pairs of RJ-45 pins 4 & 5, and 7 & 8 to minimize the common mode noise induced from RJ-45 pins 1 & 2, and 3 & 6. RJ-45 1:1 1 2 3 4 5 1:1 6 7 8 75 75 75 0.1F/3KV Chassis GND Figure 24. Bob Smith Termination Single-chip 9-port 10/100Mbps Switch Controller 98 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 12. Mechanical Dimensions See the Mechanical Dimensions notes on the next page. Single-chip 9-port 10/100Mbps Switch Controller 99 Track ID: JATR-1076-21 Rev. 1.4 RTL8309SB Datasheet 12.1. Notes for 128-Pin LQFP Dimensions Symbol A A1 A2 b c D E e HD HE L L1 y Dimensions in inches Min Typical Max 0.134 0.004 0.010 0.036 Dimensions in mm Min Typical Max 3.40 0.10 0.25 0.91 0.102 0.005 0.002 0.541 0.778 0.010 0.665 0.902 0.027 0.053 0 2.60 0.12 0.05 13.75 19.75 0.25 16.90 22.90 0.68 1.35 0 0.112 0.009 0.006 0.551 0.787 0.020 0.677 0.913 0.035 0.063 - 0.122 0.013 0.010 0.561 0.797 0.030 0.689 0.925 0.043 0.073 0.004 12 2.85 0.22 0.15 14.00 20.00 0.5 17.20 23.20 0.88 1.60 - 1. Dimensions D & E do not include interlead flash. 2. Dimension b does not include dambar rotrusion/intrusion. 3. Controlling dimension: Millimeter 4. General appearance spec. Should be based on final visual inspection. 3.10 0.32 0.25 14.25 20.25 0.75 17.50 23.50 1.08 1.85 0.10 12 APPROVE CHECK TITLE: -CU L/F, FOOTPRINT 3.2 mm LEADFRAME MATERIAL: DOC. NO. VERSION PAGE DWG NO. DATE REALTEK SEMICONDUCTOR CORP. Realtek Semiconductor Corp. Headquarters No. 2, Industry East Road IX, Science-based Industrial Park, Hsinchu, 300, Taiwan, R.O.C. Tel: 886-3-5780211 Fax: 886-3-5776047 www.realtek.com.tw Single-chip 9-port 10/100Mbps Switch Controller 100 Track ID: JATR-1076-21 Rev. 1.4