PM8043
SXP 24x12G SAS Expander
Status: In Production
Features:
SAS-3 T10 zoning for secure storage
Ultra low switching latency for improved system
performance
SAS and SATA edge-buffering preserves customers’
investment by improving performance with
existing 3G and 6G drives
Table-to-table routing removes need for keyed
connectors
Integrated Ethernet port for seamless interface to
management entity
Integrated MIPS processor for enclosure
management
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Overview
Device Overview
Summary
The SXP 12G 24-port SAS expander features SAS-3 T10 zoning, self-
configuration, table-to-table routing, and an integrated MIPS
processor for SES and enclosure management support. All SXP
expanders also feature a rich and robust customizable SDK for
enclosure management and system level diagnostics and
monitoring that offers our customers a clean migration path for
their code between product generations.
For product comparison, please consider: PM8056, PM8055,
PM8054, PM8053, PM8044
Additional Features
SAS-3 T10 zoning for secure storage
Ultra low switching latency for improved system performance
SAS and SATA edge-buffering preserves customers’ investment by
improving performance with existing 3G and 6G drives
Table-to-table routing removes need for keyed connectors
Integrated Ethernet port for seamless interface to management
entity
Integrated MIPS processor for enclosure management
Firmware compatible with Microchip SAS 3 Gbps and 6 Gbps SAS
expanders and stand-alone enclosure management controllers
12G SAS signaling support for up to 10m mini-SAS HD passive
copper cable
Optical SAS support
Early power off warning (EPOW) support
SAS and SATA edge-buffering support
Ultra-low switching latency to improve system performance
Quad SPI or parallel flash support; optional inline ECC on the
parallel flash
T10 zoning support (up to 256 zones)
Port mirroring for system debug
Real-time eye capture with enhanced BER eye mask and estimation
Non-disruptive zero down time firmware update support
Position-independent firmware image support to simplify firmware
image management/download
Compatible enclosure management firmware architecture with SXP
3G/6G products
Real-time clock (1 µS counter up to 35+ years)
Enhanced processing subsystem (MIPS 34Kc at 600 MHz)
Documents
Development
Environment
RoHS Information
Backward-compatibility with Microchii’s 6G/3G SXP devices
High-Speed I/O
SAS-3 (12 Gbps, 6 Gbps, 3 Gbps, 1.5 Gbps) and SATA-3 (6
Gbps, 3 Gbps, 1.5 Gbps) operation
Support for up to 4K SAS addresses
Automated decision feedback equalizer (DFE) per SAS-3
Programmable continuous time linear equalizer for SATA-3
Supports spread-spectrum clocking (SSC) per SAS/SATA-3
Per-PHY configurable transmit and receive SSC
Per-PHY programmable transmit amplitude and emphasis
Integrated resistive termination
SAS 3.0-compliant back-channel training (SAS3 speed
negotiation)
Peripheral Interfaces
4 UART interfaces for system monitoring and debugging
4 SGPIO interfaces (or additional TWI per SFF-8448)
Up to 62 GPIO pins
Eight dedicated two-wire interfaces (up to twelve total) for
device configuration and control of external interfaces
SPI, DSPI, and QSPI interface
JTAG and EJTAG interface
Statistics and Performance Monitoring
Per-port error counters for comprehensive diagnostic
capability
Programmable PMON counters and interrupt generation
Per-link PRBS and CJPAT pattern generators and loop-backs
for linkintegrity diagnostics
Real-time clock
Firmware Development Kit
Zoning configuration interface
SAM4/SPC4/SES3-compatible SES target with Enclosure
Management Application reference design
SAS-3-compatible protocol stack in virtual SAS/SMP port
SSP/STP Initiator API supports communication with SSP/STP
targets over SAS links
SMP routing management including topology discovery
Firmware download over multiple in-band and out-of-band
interfaces
Expander diagnostics API
Disk spin-up control and disk qualification API
Peripheral drivers for TWI, UART, SGPIO, and Ethernet
interfaces
Error detection, logging, and reporting
Chiplink Diagnostic Utility
Supports advanced features for validation, characterization,
and debugging of Microsemi expanders
Includes full SAS tool suite and a macro interface for user-
authored animation scripts
Third Party Support Green Hills MULTI development
environment and EJTAG debugger
Green Hills MULTI development environment and EJTAG
debugger
Parametrics
Value
SAS Expander
24
12 Gbps
25 mm x 25 mm
Name
Product Type
Port Count
Generation
Physical Dimensions
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