ISP1181ADGGTM - ST-Ericsson Inc

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ISP1181A

Full-speed Universal Serial Bus peripheral controller

Rev. 05 — 08 December 2004 Product data

1. General description

The ISP1181A is a Universal Serial Bus (USB) peripheral controller that complies

with

Universal Serial Bus Speciﬁcation Rev. 2.0

, supporting data transfer at full-speed

(12 Mbit/s). It provides full-speed USB communication capacity to microcontroller or

microprocessor-based systems. The ISP1181A communicates with the system’s

microcontroller or microprocessor through a high-speed general-purpose parallel

interface.

The ISP1181A supports fully autonomous, multi-conﬁgurable Direct Memory Access

(DMA) operation.

The modular approach to implementing a USB peripheral controller allows the

designer to select the optimum system microcontroller from the wide variety available.

The ability to reuse existing architecture and ﬁrmware investments shortens

development time, eliminates risks and reduces costs. The result is fast and efﬁcient

development of the most cost-effective USB peripheral solution.

The ISP1181A is ideally suited for application in many personal computer peripherals

such as printers, communication devices, scanners, external mass storage (Zip®

drive) devices and digital still cameras. It offers an immediate cost reduction for

applications that currently use SCSI implementations.

2. Features

■Complies with

Universal Serial Bus Speciﬁcation Rev. 2.0

and most Device Class

speciﬁcations

■Supports data transfer at full-speed (12 Mbit/s)

■High performance USB peripheral controller with integrated Serial Interface

Engine (SIE), FIFO memory, transceiver and 3.3 V voltage regulator

■High speed (11.1 Mbyte/s or 90 ns read/write cycle) parallel interface

■Fully autonomous and multi-conﬁguration DMA operation

■Up to 14 programmable USB endpoints with 2 ﬁxed control IN/OUT endpoints

■Integrated physical 2462 bytes of multi-conﬁguration FIFO memory

■Endpoints with double buffering to increase throughput and ease real-time data

transfer

■Seamless interface with most microcontrollers/microprocessors

■Bus-powered capability with low power consumption and low ‘suspend’ current

■6 MHz crystal oscillator input with integrated PLL for low EMI

■Controllable LazyClock (100 kHz ± 50 %) output during ‘suspend’

■Software controlled connection to the USB bus (SoftConnect™)

■Good USB connection indicator that blinks with trafﬁc (GoodLink™)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 2 of 70

■Clock output with programmable frequency (up to 48 MHz)

■Complies with the ACPI™, OnNow™ and USB power management requirements

■Internal power-on and low-voltage reset circuit, with possibility of a software reset

■Operation over the extended USB bus voltage range (4.0 V to 5.5 V) with 5 V

tolerant I/O pads

■Operating temperature range −40 °Cto+85 °C

■Full-scan design with high fault coverage

■Available in TSSOP48 and HVQFN48 packages.

3. Applications

■Personal Digital Assistant (PDA)

■Digital camera

■Communication device, for example:

◆Router

◆Modem

■Mass storage device, for example:

◆Zip drive

■Printer

■Scanner.

4. Ordering information

Table 1: Ordering information

Type number Package

Name Description Version

ISP1181ADGG TSSOP48 Plastic thin shrink small outline package; 48 leads; body width 6.1 mm SOT362-1

ISP1181ABS HVQFN48 Plastic thermal enhanced very thin quad ﬂat package; no leads;

48 terminals; body 7 ×7×0.85 mm SOT619-2

xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx

xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 3 of 70

5. Block diagram

Fig 1. Block diagram.

004aaa020

1.5

kΩ

ISP1181A

BUS

INTERFACE

ANALOG

Tx/Rx

3.3 V

RESET

VOLTAGE

REGULATOR

POWER-ON

RESET

MEMORY

MANAGEMENT

UNIT

INTEGRATED

RAM

MICRO

CONTROLLER

HANDLER

ENDPOINT

HANDLER

INTERNAL

SUPPLY I/O PIN

SUPPLY

DMA

HANDLER

PROGR.

DIVIDER

MHz

6 MHz

XTAL2to LED

sense

input XTAL1

HUB

GoodLink

to/from USB

to/from

microcontroller

PLL

OSCILLATOR

BIT CLOCK

RECOVERY

PHILIPS

SIE

VCC

SoftConnect

10, 12

38, 35 to 27,

24 to 19

EOT, DACK

15 INT

internal

reset

3.3 V 3.3 V

43 to 39 CS, ALE, WR,

RD, A0

AD0,

DATA1 to DATA9,

DATA10 to DATA15

18 BUS_CONF1

17 BUS_CONF0

DREQ

74847

GL CLKOUT

VBUS

D−

D+

Vreg(3.3) Vref

SUSPEND

WAKEUP

REGGND

25, 36, 46

GND

VCC(3.3)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 4 of 70

6. Pinning information

6.1 Pinning

Fig 2. Pin conﬁguration TSSOP48.

ISP1181ADGG

004aaa019

VCC

REGGND

Vreg(3.3)

D−

D+

VBUS

WAKEUP

SUSPEND

EOT

DREQ

DACK

INT

BUS_CONF0

BUS_CONF1

DATA15

DATA14

DATA13

DATA12

DATA11

DATA10

XTAL1

XTAL2

GND

CLKOUT

RESET

ALE

AD0

VCC(3.3)

GND

DATA1

DATA2

DATA3

DATA4

DATA5

DATA6

DATA7

DATA8

DATA9

Vref

GND

TEST1

TEST2

TEST3

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 5 of 70

6.2 Pin description

Fig 3. Pin conﬁguration HVQFN48.

DATA12

DATA13

Vref

DATA10

GND

BUS_CONF1

DATA11

DATA14

DATA15

DATA9

DATA7

DATA8

REGGND

CLKOUT

XTAL2

GND

D+

XTAL1

D−

VCC

Vreg(3.3)

RESET

ALE

ISP1181ABS

004aaa021

DATA4

DATA3

DATA5

DATA1

VCC(3.3)

DATA6

DATA2

GND

AD0

INT

DACK

EOT

WAKEUP

BUS_CONF0

TEST2

TEST3

TEST1

DREQ

SUSPEND

VBUS

Bottom view

Table 2: Pin description

Symbol[1] Pin Type Description

TSSOP48 HVQFN48

VCC 1 44 - supply voltage (3.3 Vor 5.0 V)

REGGND 2 45 - voltage regulator ground supply

Vreg(3.3) 3 46 - regulated supply voltage (3.3 V ±10 %)

from internal regulator; used to connect

decoupling capacitor and pull-up resistor on

D+ line;

Remark: Cannot be used to supply external

devices.

D−4 47 AI/O USB D− connection (analog)

D+5 48 AI/O USB D+ connection (analog)

VBUS 61IV

BUS sensing input

GL 7 2 O GoodLink LED indicator output (open-drain,

8 mA); the LED is default ON, blinks OFF

upon USB trafﬁc; to connect an LED use a

series resistor of 470 Ω (VCC = 5.0 V) or

330 Ω (VCC = 3.3 V)

WAKEUP 8 3 I wake-up input (edge triggered,

LOW to HIGH); generates a remote

wake-up from ‘suspend’ state

SUSPEND 9 4 O ‘suspend’ state indicator output (4 mA);

used as power switch control output (active

LOW) for powered-off application

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 6 of 70

EOT 10 5 I End-Of-Transfer input (programmable

polarity, see Table 21); used by the DMA

controller to force the end of a DMA transfer

to the ISP1181A

DREQ 11 6 O DMA request output (4 mA; programmable

polarity, see Table 21); signals to the DMA

controller that the ISP1181A wants to start

a DMA transfer

DACK 12 7 I DMA acknowledge input (programmable

polarity, see Table 21); used by the DMA

controller to signal the start of a DMA

transfer requested by the ISP1181A

TEST1 13 8 I test input; this pin must be connected to

VCC via an external 10 kΩresistor

TEST2 14 9 I test input; this pin must be connected to

VCC via an external 10 kΩresistor

INT 15 10 O interrupt output; programmable polarity

(active HIGH or LOW) and signalling (level

or pulse); see Table 21

TEST3 16 11 O test output; this pin is used for test

purposes only

BUS_CONF0 17 12 I bus conﬁguration selector; see Table 3

BUS_CONF1 18 13 I bus conﬁguration selector; see Table 3

DATA15 19 14 I/O bit 15 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA14 20 15 I/O bit 14 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA13 21 16 I/O bit 13 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA12 22 17 I/O bit 12 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA11 23 18 I/O bit 11 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA10 24 19 I/O bit 10 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

GND 25 20 - ground supply

Vref 26 21 - I/O pin reference voltage (3.3 V); no

connection if VCC = 5.0 V

DATA9 27 22 I/O bit 9 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA8 28 23 I/O bit 8 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA7 29 24 I/O bit 7 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA6 30 25 I/O bit 6 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

Table 2: Pin description

…continued

Symbol[1] Pin Type Description

TSSOP48 HVQFN48

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 7 of 70

DATA5 31 26 I/O bit 5 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA4 32 27 I/O bit 4 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA3 33 28 I/O bit 3 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA2 34 29 I/O bit 2 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

DATA1 35 30 I/O bit 1 of D[15:0]; bidirectional data line

(slew-rate controlled output, 4 mA)

GND 36 31 - ground supply

VCC(3.3) 37 32 - supply voltage (3.0 V to 3.6 V); leave this

pin unconnected when using VCC = 5.0 V

AD0 38 33 I/O multiplexed bidirectional address and data

line; represents address A0 or bit 0 of

D[15:0] in conjunction with input ALE;

level-sensitive input or slew-rate controlled

output (4 mA)

Address phase: a HIGH-to-LOW transition

on input ALE latches the level on this pin as

address A0 (1 = command, 0 = data)

Data phase: during reading this pin outputs

bit D[0]; during writing the level on this pin is

latched as bit D[0]

A0 39 34 I address input; selects command (A0 = 1) or

data (A0 = 0); in a multiplexed address/data

bus conﬁguration this pin is not used and

must be tied LOW (connect to GND)

RD 40 35 I read strobe input

WR 41 36 I write strobe input

ALE 42 37 I address latch enable input; a HIGH-to-LOW

transition latches the level on pin AD0 as

address information in a multiplexed

address/data bus conﬁguration; must be

tied LOW (connect to GND) for a separate

address/data bus conﬁguration

CS 43 38 I chip select input

RESET 44 39 I reset input (Schmitt trigger); a LOW level

produces an asynchronous reset; connect

to VCC for power-on reset (internal POR

circuit)

CLKOUT 45 40 O programmable clock output (2 mA)

Table 2: Pin description

…continued

Symbol[1] Pin Type Description

TSSOP48 HVQFN48

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 8 of 70

[1] Symbol names with an overscore (for example, NAME) represent active LOW signals.

GND 46 41 - ground supply

XTAL2 47 42 O crystal oscillator output (6 MHz); connect a

fundamental parallel-resonant crystal; leave

this pin open when using an external clock

source on pin XTAL1

XTAL1 48 43 I crystal oscillator input (6 MHz); connect a

fundamental parallel-resonant crystal or an

external clock source (leave pin XTAL2

unconnected)

Table 2: Pin description

…continued

Symbol[1] Pin Type Description

TSSOP48 HVQFN48

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 9 of 70

7. Functional description

The ISP1181A is a full-speed USB peripheral controller with up to 14 conﬁgurable

endpoints. It has a fast general-purpose parallel interface for communication with

many types of microcontrollers or microprocessors. It supports different bus

conﬁgurations (see Table 3) and local DMA transfers of up to 16 bytes per cycle. The

block diagram is given in Figure 1.

The ISP1181A has 2462 bytes of internal FIFO memory, which is shared among the

enabled USB endpoints. The type and FIFO size of each endpoint can be individually

conﬁgured, depending on the required packet size. Isochronous and bulk endpoints

are double-buffered for increased data throughput.

The ISP1181A requires a single supply voltage of 3.3 V or 5.0 V and has an internal

3.3 V voltage regulator for powering the analog USB transceiver. It supports

bus-powered operation.

The ISP1181A operates on a 6 MHz oscillator frequency. A programmable clock

output is available up to 48 MHz. During ‘suspend’ state the 100 kHz ± 50 %

LazyClock frequency can be output.

7.1 Analog transceiver

The transceiver is compliant with the

Universal Serial Bus Speciﬁcation Rev. 2.0 (full

speed)

. It interfaces directly with the USB cable through external termination

resistors.

7.2 Philips Serial Interface Engine (SIE)

The Philips SIE implements the full USB protocol layer. It is completely hardwired for

speed and needs no ﬁrmware intervention. The functions of this block include:

synchronization pattern recognition, parallel/serial conversion, bit (de-)stufﬁng, CRC

checking/generation, Packet IDentiﬁer (PID) veriﬁcation/generation, address

recognition, handshake evaluation/generation.

7.3 Memory Management Unit (MMU) and integrated RAM

The MMU and the integrated RAM provide the conversion between the USB speed

(12 Mbit/s bursts) and the parallel interface to the microcontroller (max. 12 Mbyte/s).

This allows the microcontroller to read and write USB packets at its own speed.

7.4 SoftConnect

The connection to the USB is accomplished by bringing D+ (for full-speed USB

peripherals) HIGH through a 1.5 kΩ pull-up resistor. In the ISP1181A, the 1.5 kΩ

pull-up resistor is integrated on-chip and is not connected to VCC by default. The

connection is established by a command sent from the external/system

microcontroller. This allows the system microcontroller to complete its initialization

sequence before deciding to establish connection with the USB. Reinitialization of the

USB connection can also be performed without disconnecting the cable.

The ISP1181A will check for USB VBUS availability before the connection can be

established. VBUS sensing is provided through pin VBUS.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 10 of 70

VBUS sensing prevents the peripheral from wake-up when VBUS is not present.

Without VBUS sensing, any activity or noise on (D+, D-) might wake up the peripheral.

With VBUS sensing, (D+, D-) is decoupled when no VBUS is present. Therefore, even if

there is noise on the (D+, D-) lines, it is not taken into account. This ensures that the

peripheral remains in the suspend state.

Remark: Note that the tolerance of the internal resistors is 25 %. This is higher than

the 5 % tolerance speciﬁed by the USB speciﬁcation. However, the overall voltage

speciﬁcation for the connection can still be met with a good margin. The decision to

make use of this feature lies with the USB equipment designer.

7.5 GoodLink

Indication of a good USB connection is provided at pin GL through GoodLink

technology. During enumeration, the LED indicator will blink on momentarily. When

the ISP1181A has been successfully enumerated (the peripheral address is set), the

LED indicator will remain permanently on. Upon each successful packet transfer (with

ACK) to and from the ISP1181A, the LED will blink off for 100 ms. During ‘suspend’

state, the LED will remain off.

This feature provides a user-friendly indication of the status of the USB peripheral,

the connected hub, and the USB trafﬁc. It is a useful ﬁeld diagnostics tool for isolating

faulty equipment. It can therefore help to reduce ﬁeld support and hotline overhead.

7.6 Bit clock recovery

The bit clock recovery circuit recovers the clock from the incoming USB data stream

using a 4 times over-sampling principle. It is able to track jitter and frequency drift as

speciﬁed by the

USB Speciﬁcation Rev. 2.0

7.7 Voltage regulator

A 5 V-to-3.3 V voltage regulator is integrated on-chip to supply the analog transceiver

and internal logic. This voltage is available at pin Vreg(3.3) to supply an external 1.5 kΩ

pull-up resistor on the D+ line. Alternatively, the ISP1181A provides SoftConnect

technology via an integrated 1.5 kΩ pull-up resistor (see Section 7.4).

7.8 PLL clock multiplier

A 6 MHz to 48 MHz clock multiplier Phase-Locked Loop (PLL) is integrated on-chip.

This allows for the use of a low-cost 6 MHz crystal, which also minimizes EMI. No

external components are required for the operation of the PLL.

7.9 Parallel I/O (PIO) and Direct Memory Access (DMA) interface

A generic PIO interface is deﬁned for speed and ease-of-use. It also allows direct

interfacing to most microcontrollers. To a microcontroller, the ISP1181A appears as a

memory device with an 8/16-bit data bus and a 1-bit address line. The ISP1181A

supports both multiplexed and non-multiplexed address and data buses.

The ISP1181A can also be conﬁgured as a DMA slave device to allow more efﬁcient

data transfer. One of the 14 endpoint FIFOs may directly transfer data to/from the

local shared memory. The DMA interface can be conﬁgured independently from the

PIO interface.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 11 of 70

8. Modes of operation

The ISP1181A has four bus conﬁguration modes, selected via pins BUS_CONF1 and

BUS_CONF0:

Mode 0 16-bit I/O port shared with 16-bit DMA port

Mode 1 reserved

Mode 2 8-bit I/O port shared with 8-bit DMA port

Mode 3 reserved.

The bus conﬁgurations for each of these modes are given in Table 3. Typical interface

circuits for each mode are given in Section 21.1.

9. Endpoint descriptions

Each USB peripheral is logically composed of several independent endpoints. An

endpoint acts as a terminus of a communication ﬂow between the host and the

peripheral. At design time each endpoint is assigned a unique number (endpoint

identiﬁer, see Table 4). The combination of the peripheral address (given by the host

during enumeration), the endpoint number, and the transfer direction allows each

endpoint to be uniquely referenced.

The ISP1181A has 16 endpoints: endpoint 0 (control IN and OUT) plus 14

conﬁgurable endpoints, which can be individually deﬁned as

interrupt/bulk/isochronous, IN or OUT. Each enabled endpoint has an associated

FIFO, which can be accessed either via the parallel I/O interface or via DMA.

9.1 Endpoint access

Table 4 lists the endpoint access modes and programmability. All endpoints support

I/O mode access. Endpoints 1 to 14 also support DMA access. FIFO DMA access is

selected and enabled via bits EPIDX[3:0] and DMAEN of the DMA Conﬁguration

Table 3: Bus conﬁguration modes

Mode BUS_CONF[1:0] PIO width DMA width Description

DMAWD = 0 DMAWD = 1

0 0 0 D[15:1], AD0 - D[15:1], AD0 multiplexed address/data on pin AD0;

bus is shared by 16-bit I/O port and

16-bit DMA port

1 0 1 reserved reserved reserved reserved

2 1 0 D[7:1], AD0 D[7:1], AD0 - multiplexed address/data on pin AD0;

bus is shared by 8-bit I/O port and 8-bit

DMA port

3 1 1 reserved reserved reserved reserved

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 12 of 70

[1] The total amount of FIFO storage allocated to enabled endpoints must not exceed 2462 bytes.

[2] IN: input for the USB host (ISP1181A transmits); OUT: output from the USB host (ISP1181A receives). The data ﬂow direction is

determined by bit EPDIR in the Endpoint Conﬁguration Register.

9.2 Endpoint FIFO size

The size of the FIFO determines the maximum packet size that the hardware can

support for a given endpoint. Only enabled endpoints are allocated space in the

shared FIFO storage, disabled endpoints have zero bytes. Table 5 lists the

programmable FIFO sizes.

The following bits in the Endpoint Conﬁguration Register (ECR) affect FIFO

allocation:

•Endpoint enable bit (FIFOEN)

•Size bits of an enabled endpoint (FFOSZ[3:0])

•Isochronous bit of an enabled endpoint (FFOISO).

Remark: Register changes that affect the allocation of the shared FIFO storage

among endpoints must not be made while valid data is present in any FIFO of the

enabled endpoints. Such changes will render all FIFO contents undeﬁned.

Table 4: Endpoint access and programmability

Endpoint

identiﬁer FIFO size (bytes)[1] Double

buffering I/O mode

access DMA mode

access Endpoint type

0 64 (ﬁxed) no yes no control OUT[2]

0 64 (ﬁxed) no yes no control IN[2]

1 programmable supported supported supported programmable

2 programmable supported supported supported programmable

3 programmable supported supported supported programmable

4 programmable supported supported supported programmable

5 programmable supported supported supported programmable

6 programmable supported supported supported programmable

7 programmable supported supported supported programmable

8 programmable supported supported supported programmable

9 programmable supported supported supported programmable

10 programmable supported supported supported programmable

11 programmable supported supported supported programmable

12 programmable supported supported supported programmable

13 programmable supported supported supported programmable

14 programmable supported supported supported programmable

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 13 of 70

Each programmable FIFO can be conﬁgured independently via its ECR, but the total

physical size of all enabled endpoints (IN plus OUT) must not exceed 2462 bytes.

Table 6 shows an example of a conﬁguration ﬁtting in the maximum available space of

2462 bytes. The total number of logical bytes in the example is 1311. The physical

storage capacity used for double buffering is managed by the peripheral hardware

and is transparent to the user.

Table 5: Programmable FIFO size

FFOSZ[3:0] Non-isochronous Isochronous

0000 8 bytes 16 bytes

0001 16 bytes 32 bytes

0010 32 bytes 48 bytes

0011 64 bytes 64 bytes

0100 reserved 96 bytes

0101 reserved 128 bytes

0110 reserved 160 bytes

0111 reserved 192 bytes

1000 reserved 256 bytes

1001 reserved 320 bytes

1010 reserved 384 bytes

1011 reserved 512 bytes

1100 reserved 640 bytes

1101 reserved 768 bytes

1110 reserved 896 bytes

1111 reserved 1023 bytes

Table 6: Memory conﬁguration example

Physical size

(bytes) Logical size

(bytes) Endpoint description

64 64 control IN (64 byte ﬁxed)

64 64 control OUT (64 byte ﬁxed)

2046 1023 double-buffered 1023-byte isochronous endpoint

16 16 16-byte interrupt OUT

16 16 16-byte interrupt IN

128 64 double-buffered 64-byte bulk OUT

128 64 double-buffered 64-byte bulk IN

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 14 of 70

9.3 Endpoint initialization

In response to the standard USB request, Set Interface, the ﬁrmware must program

all 16 ECRs of the ISP1181A in sequence (see Table 4), whether the endpoints are

enabled or not. The hardware will then automatically allocate FIFO storage space.

If all endpoints have been conﬁgured successfully, the ﬁrmware must return an empty

packet to the control IN endpoint to acknowledge success to the host. If there are

errors in the endpoint conﬁguration, the ﬁrmware must stall the control IN endpoint.

When reset by hardware or via the USB bus, the ISP1181A disables all endpoints

and clears all ECRs, except for the control endpoint which is ﬁxed and always

enabled.

Endpoint initialization can be done at any time; however, it is valid only after

enumeration.

9.4 Endpoint I/O mode access

When an endpoint event occurs (a packet is transmitted or received), the associated

endpoint interrupt bits (EPn) of the Interrupt Register (IR) will be set by the SIE. The

ﬁrmware then responds to the interrupt and selects the endpoint for processing.

The endpoint interrupt bit will be cleared by reading the Endpoint Status Register

(ESR). The ESR also contains information on the status of the endpoint buffer.

For an OUT (= receive) endpoint, the packet length and packet data can be read from

ISP1181A using the Read Buffer command. When the whole packet has been read,

the ﬁrmware sends a Clear Buffer command to enable the reception of new packets.

For an IN (= transmit) endpoint, the packet length and data to be sent can be written

to ISP1181A using the Write Buffer command. When the whole packet has been

written to the buffer, the ﬁrmware sends a Validate Buffer command to enable data

transmission to the host.

9.5 Special actions on control endpoints

Control endpoints require special ﬁrmware actions. The arrival of a SETUP packet

ﬂushes the IN buffer and disables the Validate Buffer and Clear Buffer commands for

the control IN and OUT endpoints. The microcontroller needs to re-enable these

commands by sending an Acknowledge Setup command to both control endpoints.

This ensures that the last SETUP packet stays in the buffer and that no packets can

be sent back to the host until the microcontroller has explicitly acknowledged that it

has seen the SETUP packet.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 15 of 70

10. DMA transfer

Direct Memory Access (DMA) is a method to transfer data from one location to

another in a computer system, without intervention of the central processor (CPU).

Many different implementations of DMA exist. The ISP1181A supports two methods:

•8237 compatible mode: based on the DMA subsystem of the IBM personal

computers (PC, AT and all its successors and clones); this architecture uses the

Intel 8237 DMA controller and has separate address spaces for memory and I/O

•DACK-only mode: based on the DMA implementation in some embedded RISC

processors, which has a single address space for both memory and I/O.

The ISP1181A supports DMA transfer for all 14 conﬁgurable endpoints (see Table 4).

Only one endpoint at a time can be selected for DMA transfer. The DMA operation of

the ISP1181A can be interleaved with normal I/O mode access to other endpoints.

The following features are supported:

•Single-cycle or burst transfers (up to 16 bytes per cycle)

•Programmable transfer direction (read or write)

•Multiple End-Of-Transfer (EOT) sources: external pin, internal conditions,

short/empty packet

•Programmable signal levels on pins DREQ, DACK and EOT.

10.1 Selecting an endpoint for DMA transfer

The target endpoint for DMA access is selected via bits EPDIX[3:0] in the DMA

Conﬁguration Register, as shown in Table 7. The transfer direction (read or write) is

automatically set by bit EPDIR in the associated ECR, to match the selected endpoint

type (OUT endpoint: read; IN endpoint: write).

Asserting input DACK automatically selects the endpoint speciﬁed in the DMA

Conﬁguration Register, regardless of the current endpoint used for I/O mode access.

Table 7: Endpoint selection for DMA transfer

Endpoint

identiﬁer EPIDX[3:0] Transfer direction

EPDIR = 0 EPDIR = 1

1 0010 OUT: read IN: write

2 0011 OUT: read IN: write

3 0100 OUT: read IN: write

4 0101 OUT: read IN: write

5 0110 OUT: read IN: write

6 0111 OUT: read IN: write

7 1000 OUT: read IN: write

8 1001 OUT: read IN: write

9 1010 OUT: read IN: write

10 1011 OUT: read IN: write

11 1100 OUT: read IN: write

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 16 of 70

10.2 8237 compatible mode

The 8237 compatible DMA mode is selected by clearing bit DAKOLY in the Hardware

Conﬁguration Register (see Table 20). The pin functions for this mode are shown in

Table 8.

The DMA subsystem of an IBM compatible PC is based on the Intel 8237 DMA

controller. It operates as a ‘ﬂy-by’ DMA controller: the data is not stored in the DMA

controller, but it is transferred between an I/O port and a memory address. A typical

example of ISP1181A in 8237 compatible DMA mode is given in Figure 4.

The 8237 has two control signals for each DMA channel: DREQ (DMA Request) and

DACK (DMA Acknowledge). General control signals are HRQ (Hold Request) and

HLDA (Hold Acknowledge). The bus operation is controlled via MEMR (Memory

Read), MEMW (Memory Write), IOR (I/O read) and IOW (I/O write).

12 1101 OUT: read IN: write

13 1110 OUT: read IN: write

14 1111 OUT: read IN: write

Table 7: Endpoint selection for DMA transfer

…continued

Endpoint

identiﬁer EPIDX[3:0] Transfer direction

EPDIR = 0 EPDIR = 1

Table 8: 8237 compatible mode: pin functions

Symbol Description I/O Function

DREQ DMA request O ISP1181A requests a DMA transfer

DACK DMA acknowledge I DMA controller conﬁrms the transfer

EOT end of transfer I DMA controller terminates the transfer

RD read strobe I instructs ISP1181A to put data on the bus

WR write strobe I instructs ISP1181A to get data from the

bus

Fig 4. ISP1181A in 8237 compatible DMA mode.

AD0,

DATA1 to DATA15

CPU

004aaa022

RAM

ISP1181A DMA

CONTROLLER

8237

DREQ

DACK

DREQ HRQ

HLDA

HRQ

HLDA

DACK

IOR

IOW

MEMR

MEMW

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 17 of 70

The following example shows the steps which occur in a typical DMA transfer:

1. ISP1181A receives a data packet in one of its endpoint FIFOs; the packet must

be transferred to memory address 1234H.

2. ISP1181A asserts the DREQ signal requesting the 8237 for a DMA transfer.

3. The 8237 asks the CPU to release the bus by asserting the HRQ signal.

4. After completing the current instruction cycle, the CPU places the bus control

signals (MEMR, MEMW, IOR and IOW) and the address lines in three-state and

asserts HLDA to inform the 8237 that it has control of the bus.

5. The 8237 now sets its address lines to 1234H and activates the MEMW and IOR

control signals.

6. The 8237 asserts DACK to inform the ISP1181A that it will start a DMA transfer.

7. The ISP1181A now places the byte or word to be transferred on the data bus

lines, because its RD signal was asserted by the 8237.

8. The 8237 waits one DMA clock period and then de-asserts MEMW and IOR. This

latches and stores the byte or word at the desired memory location. It also

informs the ISP1181A that the data on the bus lines has been transferred.

9. The ISP1181A de-asserts the DREQ signal to indicate to the 8237 that DMA is

no longer needed. In Single cycle mode this is done after each byte or word, in

Burst mode following the last transferred byte or word of the DMA cycle.

10. The 8237 de-asserts the DACK output indicating that the ISP1181A must stop

placing data on the bus.

11. The 8237 places the bus control signals (MEMR, MEMW, IOR and IOW) and the

address lines in three-state and de-asserts the HRQ signal, informing the CPU

that it has released the bus.

12. The CPU acknowledges control of the bus by de-asserting HLDA. After activating

the bus control lines (MEMR, MEMW, IOR and IOW) and the address lines, the

CPU resumes the execution of instructions.

For a typical bulk transfer the above process is repeated 64 times, once for each byte.

After each byte the address register in the DMA controller is incremented and the

byte counter is decremented. When using 16-bit DMA, the number of transfers is 32,

and address incrementing and byte counter decrementing is done by 2 for each word.

10.3 DACK-only mode

The DACK-only DMA mode is selected by setting bit DAKOLY in the Hardware

Conﬁguration Register (see Table 20). The pin functions for this mode are shown in

Table 9. A typical example of ISP1181A in DACK-only DMA mode is given in Figure 5.

Table 9: DACK-only mode: pin functions

Symbol Description I/O Function

DREQ DMA request O ISP1181A requests a DMA transfer

DACK DMA acknowledge I DMA controller conﬁrms the transfer;

also functions as data strobe

EOT End-Of-Transfer I DMA controller terminates the transfer

RD read strobe I not used

WR write strobe I not used

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 18 of 70

In DACK-only mode the ISP1181A uses the DACK signal as data strobe. Input

signals RD and WR are ignored. This mode is used in CPU systems that have a

single address space for memory and I/O access. Such systems have no separate

MEMW and MEMR signals: the RD and WR signals are also used as memory data

strobes.

10.4 End-Of-Transfer conditions

10.4.1 Bulk endpoints

A DMA transfer to/from a bulk endpoint can be terminated by any of the following

conditions (bit names refer to the DMA Conﬁguration Register, see Table 24):

•An external End-Of-Transfer signal occurs on input EOT

•The DMA transfer completes as programmed in the DMA Counter register

(CNTREN = 1)

•A short packet is received on an enabled OUT endpoint (SHORTP = 1)

•DMA operation is disabled by clearing bit DMAEN.

External EOT: When reading from an OUT endpoint, an external EOT will stop the

DMA operation and clear any remaining data in the current FIFO. For a double-

buffered endpoint the other (inactive) buffer is not affected.

When writing to an IN endpoint, an EOT will stop the DMA operation and the data

packet in the FIFO (even if it is smaller than the maximum packet size) will be sent to

the USB host at the next IN token.

DMA Counter Register: An EOT from the DMA Counter Register is enabled by

setting bit CNTREN in the DMA Conﬁguration Register. The ISP1181A has a 16-bit

DMA Counter Register, which speciﬁes the number of bytes to be transferred. When

DMA is enabled (DMAEN = 1), the internal DMA counter is loaded with the value from

the DMA Counter Register. When the internal counter completes the transfer as

programmed in the DMA counter, an EOT condition is generated and the DMA

operation stops.

Fig 5. ISP1181A in DACK-only DMA mode.

RAM

ISP1181A DMA

CONTROLLER CPU

DREQ

DACK HRQ

HLDA

HRQ

HLDA

DREQ

DACK

004aaa023

AD0,

DATA1 to DATA15

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 19 of 70

Short packet: Normally, the transfer byte count must be set via a control endpoint

before any DMA transfer takes place. When a short packet has been enabled as EOT

indicator (SHORTP = 1), the transfer size is determined by the presence of a short

packet in the data. This mechanism permits the use of a fully autonomous data

transfer protocol.

When reading from an OUT endpoint, reception of a short packet at an OUT token

will stop the DMA operation after transferring the data bytes of this packet.

[1] The DMA transfer stops. However, no interrupt is generated.

10.4.2 Isochronous endpoints

A DMA transfer to/from an isochronous endpoint can be terminated by any of the

following conditions (bit names refer to the DMA Conﬁguration Register, see

Table 24):

•An external End-Of-Transfer signal occurs on input EOT

•The DMA transfer completes as programmed in the DMA Counter register

(CNTREN = 1)

•An End-Of-Packet (EOP) signal is detected

•DMA operation is disabled by clearing bit DMAEN.

Table 10: Summary of EOT conditions for a bulk endpoint

EOT condition OUT endpoint IN endpoint

EOT input EOT is active EOT is active

DMA Counter Register transfer completes as

programmed in the DMA

Counter register

transfer completes as

programmed in the DMA

Counter register

Short packet short packet is received and

transferred counter reaches zero in the

middle of the buffer

DMAEN bit in DMA

Conﬁguration Register DMAEN = 0[1] DMAEN = 0[1]

Table 11: Recommended EOT usage for isochronous endpoints

EOT condition OUT endpoint IN endpoint

EOT input active do not use preferred

DMA Counter Register zero do not use preferred

End-Of-Packet preferred do not use

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 20 of 70

11. Suspend and resume

11.1 Suspend conditions

The ISP1181A detects a USB suspend status when a constant idle state is present

on the USB bus for more than 3 ms.

The bus-powered devices that are suspended must not consume more than 500 µA

of current. This is achieved by shutting down power to system components or

supplying them with a reduced voltage.

The steps leading up to suspend status are as follows:

1. On detecting a wakeup-to-suspend transition, the ISP1181A sets bit SUSPND in

the Interrupt register. This will generate an interrupt if bit IESUSP in the Interrupt

Enable register is set.

2. When the ﬁrmware detects a suspend condition, it must prepare all system

components for the suspend state:

a. All signals connected to the ISP1181A must enter appropriate states to meet

the power consumption requirements of the suspend state.

b. All input pins of the ISP1181A must have a CMOS LOW or HIGH level.

3. In the interrupt service routine, the ﬁrmware must check the current status of the

USB bus. When bit BUSTATUS in the Interrupt register is logic 0, the USB bus

has left the suspend mode and the process must be aborted. Otherwise, the next

step can be executed.

4. To meet the suspend current requirements for a bus-powered device, the internal

clocks must be switched off by clearing bit CLKRUN in the Hardware

Conﬁguration register.

5. When the ﬁrmware has set and cleared bit GOSUSP in the Mode register, the

ISP1181A enters the suspend state. In powered-off application, the ISP1181A

asserts output SUSPEND and switches off the internal clocks after 2 ms.

Figure 6 shows a typical timing diagram.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 21 of 70

In Figure 6:

•A: indicates the point at which the USB bus enters the idle state.

•B: indicates resume condition, which can be a 20 ms K-state on the USB bus, a

HIGH level on pin WAKEUP, or a LOW level on pin CS.

•C: indicates remote wake-up. The ISP1181A will drive a K-state on the USB bus

for 10 ms after pin WAKEUP goes HIGH or pin CS goes LOW.

•D: after detecting the suspend interrupt, set and clear bit GOSUSP in the Mode

11.1.1 Powered-off application

Figure 7 shows a typical bus-powered modem application using the ISP1181A. The

SUSPEND output switches off power to the microcontroller and other external circuits

during the suspend state. The ISP1181A is woken up through the USB bus (global

resume) or by the ring detection circuit on the telephone line.

Fig 6. Suspend and resume timing.

004aaa359

INT_N

> 5 ms

suspend

interrupt

USB BUS

GOSUSP

WAKEUP

SUSPEND

idle state

10 ms

K-state

> 3 ms

1.8 ms to 2.2 ms

0.5 ms to 3.5 ms

resume

interrupt

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 22 of 70

11.2 Resume conditions

A wake-up from the suspend state is initiated either by the USB host or by the

application:

•USB host: drives a K-state on the USB bus (global resume)

•Application: remote wake-up through a HIGH level on input WAKEUP or a LOW

level on input CS (if enabled using bit WKUPCS in the Hardware Conﬁguration

The steps of a wake-up sequence are as follows:

1. The internal oscillator and the PLL multiplier are re-enabled. When stabilized, the

clock signals are routed to all internal circuits of the ISP1181A.

2. The SUSPEND output is deasserted, and bit RESUME in the Interrupt register is

set. This will generate an interrupt if bit IERESUME in the Interrupt Enable

3. Maximum 15 ms after starting the wake-up sequence, the ISP1181A resumes its

normal functionality.

4. In case of a remote wake-up, the ISP1181A drives a K-state on the USB bus for

10 ms.

5. Following the deassertion of output SUSPEND, the application restores itself and

other system components to the normal operating mode.

6. After wake-up, the internal registers of the ISP1181A are write-protected to

prevent corruption by inadvertent writing during power-up of external

components. The ﬁrmware must send an Unlock Device command to the

ISP1181A to restore its full functionality.

11.3 Control bits in suspend and resume

Fig 7. SUSPEND and WAKEUP signals in a powered-off modem application.

WAKEUP

8031

RST

RING DETECTION

ISP1181A

USB

VBUS

VCC

LINE

004aaa673

SUSPEND

Table 12: Summary of control bits

Interrupt SUSPND a transition from awake to the suspend state was detected

BUSTATUS monitors USB bus status (logic 1 = suspend); used when

interrupt is serviced

RESUME a transition from suspend to the resume state was detected

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 23 of 70

12. Commands and registers

The functions and registers of ISP1181A are accessed via commands, which consist

of a command code followed by optional data bytes (read or write action). An

overview of the available commands and registers is given in Table 13.

A complete access consists of two phases:

1. Command phase: when address bit A0 = 1, the ISP1181A interprets the data on

the lower byte of the bus bits D[7:0] as a command code. Commands without a

data phase are executed immediately.

2. Data phase (optional): when address bit A0 = 0, the ISP1181A transfers the

data on the bus to or from a register or endpoint FIFO. Multi-byte registers are

accessed least signiﬁcant byte/word ﬁrst.

The following applies for register or FIFO access in 16-bit bus mode:

•The upper byte (bits D15 to D8) in command phase or the undeﬁned byte in data

phase are ignored.

•The access of registers is word-aligned: byte access is not allowed.

•If the packet length is odd, the upper byte of the last word in an IN endpoint buffer

is not transmitted to the host. When reading from an OUT endpoint buffer, the

upper byte of the last word must be ignored by the ﬁrmware. The packet length is

stored in the ﬁrst 2 bytes of the endpoint buffer.

Interrupt Enable IESUSP enables output INT to signal the suspend state

IERESUME enables output INT to signal the resume state

Mode SOFTCT enables SoftConnect pull-up resistor to USB bus

GOSUSP a HIGH-to-LOW transition enables the suspend state

Hardware

Conﬁguration EXTPUL selects internal (SoftConnect) or external pull-up resistor

WKUPCS enables wake-up on LOW level of input CS

PWROFF selects powered-off mode during the suspend state

Unlock all sending data AA37H unlocks the internal registers for

writing after a resume

Table 12: Summary of control bits

…continued

Table 13: Command and register summary

Name Destination Code (Hex) Transaction[1]

Initialization commands

Write Control OUT Conﬁguration Endpoint Conﬁguration Register

endpoint 0 OUT 20 write 1 byte[2]

Write Control IN Conﬁguration Endpoint Conﬁguration Register

endpoint 0 IN 21 write 1 byte[2]

Write Endpoint n Conﬁguration

(n = 1 to 14) Endpoint Conﬁguration Register

endpoint 1 to 14 22 to 2F write 1 byte[2][3]

Read Control OUT Conﬁguration Endpoint Conﬁguration Register

endpoint 0 OUT 30 read 1 byte[2]

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 24 of 70

Read Control IN Conﬁguration Endpoint Conﬁguration Register

endpoint 0 IN 31 read 1 byte[2]

Read Endpoint n Conﬁguration

(n = 1 to 14) Endpoint Conﬁguration Register

endpoint 1 to 14 32 to 3F read 1 byte[2]

Write/Read Device Address Address Register B6/B7 write/read 1 byte[2]

Write/Read Mode Register Mode Register B8/B9 write/read 1 byte[2]

Write/Read Hardware Conﬁguration Hardware Conﬁguration Register BA/BB write/read 2 bytes

Write/Read Interrupt Enable

Write/Read DMA Conﬁguration DMA Conﬁguration Register F0/F1 write/read 2 bytes

Write/Read DMA Counter DMA Counter Register F2/F3 write/read 2 bytes

Reset Device resets all registers F6 -

Data ﬂow commands

Write Control OUT Buffer illegal: endpoint is read-only (00) -

Write Control IN Buffer FIFO endpoint 0 IN 01 N ≤64 bytes

Write Endpoint n Buffer

(n = 1 to 14) FIFO endpoint 1 to 14

(IN endpoints only) 02 to 0F isochronous: N ≤1023 bytes

interrupt/bulk: N ≤64 bytes

Read Control OUT Buffer FIFO endpoint 0 OUT 10 N ≤64 bytes

Read Control IN Buffer illegal: endpoint is write-only (11) -

Read Endpoint n Buffer

(n = 1 to 14) FIFO endpoint 1 to 14

(OUT endpoints only) 12 to 1F isochronous:

N≤1023 bytes[4]

interrupt/bulk: N ≤64 bytes

Stall Control OUT Endpoint Endpoint 0 OUT 40 -

Stall Control IN Endpoint Endpoint 0 IN 41 -

Stall Endpoint n

(n = 1 to 14) Endpoint 1 to 14 42 to 4F -

Read Control OUT Status Endpoint Status Register

endpoint 0 OUT 50 read 1 byte[2]

Read Control IN Status Endpoint Status Register

endpoint 0 IN 51 read 1 byte[2]

Read Endpoint n Status

(n = 1 to 14) Endpoint Status Register n

endpoint 1 to 14 52 to 5F read 1 byte[2]

Validate Control OUT Buffer illegal: IN endpoints only[5] (60) -

Validate Control IN Buffer FIFO endpoint 0 IN[5] 61 -[3]

Validate Endpoint n Buffer

(n = 1 to 14) FIFO endpoint 1 to 14

(IN endpoints only)[5] 62 to 6F -[3]

Clear Control OUT Buffer FIFO endpoint 0 OUT 70 -[3]

Clear Control IN Buffer illegal[6] (71) -

Clear Endpoint n Buffer

(n = 1 to 14) FIFO endpoint 1 to 14

(OUT endpoints only)[6] 72 to 7F [3]

Unstall Control OUT Endpoint Endpoint 0 OUT 80 -

Unstall Control IN Endpoint Endpoint 0 IN 81 -

Table 13: Command and register summary

…continued

Name Destination Code (Hex) Transaction[1]

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 25 of 70

[1] With N representing the number of bytes, the number of words for 16-bit bus width is: (N + 1) DIV 2.

[2] When accessing an 8-bit register in 16-bit mode, the upper byte is invalid.

[3] In 8-bit bus mode this command requires more time to complete than other commands. See Table 58.

[4] During isochronous transfer in 16-bit mode, because N ≤1023, the ﬁrmware must take care of the upper byte.

[5] Validating an OUT endpoint buffer causes unpredictable behavior of ISP1181A.

[6] Clearing an IN endpoint buffer causes unpredictable behavior of ISP1181A.

[7] Reads a copy of the Status Register: executing this command does not clear any status bits or interrupt bits.

12.1 Initialization commands

Initialization commands are used during the enumeration process of the USB

network. These commands are used to conﬁgure and enable the embedded

endpoints. They also serve to set the USB assigned address of ISP1181A and to

perform a device reset.

12.1.1 Write/Read Endpoint Conﬁguration

This command is used to access the Endpoint Conﬁguration Register (ECR) of the

target endpoint. It deﬁnes the endpoint type (isochronous or bulk/interrupt), direction

(OUT/IN), FIFO size and buffering scheme. It also enables the endpoint FIFO. The

The allocation of FIFO memory only takes place after all 16 endpoints have been

conﬁgured in sequence (from endpoint 0 OUT to endpoint 14). Although the control

endpoints have ﬁxed conﬁgurations, they must be included in the initialization

sequence and be conﬁgured with their default values (see Table 4). Automatic FIFO

allocation starts when endpoint 14 has been conﬁgured.

Unstall Endpoint n

(n = 1 to 14) Endpoint 1 to 14 82 to 8F -

Check Control OUT Status[7] Endpoint Status Image Register

endpoint 0 OUT D0 read 1 byte[2]

Check Control IN Status[7] Endpoint Status Image Register

endpoint 0 IN D1 read 1 byte[2]

Check Endpoint n Status

(n = 1 to 14)[7] Endpoint Status Image Register n

endpoint 1 to 14 D2 to DF read 1 byte[2]

Acknowledge Setup Endpoint 0 IN and OUT F4 -[3]

General commands

Read Control OUT Error Code Error Code Register

endpoint 0 OUT A0 read 1 byte[2]

Read Control IN Error Code Error Code Register

endpoint 0 IN A1 read 1 byte[2]

Read Endpoint n Error Code

(n = 1 to 14) Error Code Register

endpoint 1 to 14 A2 to AF read 1 byte[2]

Unlock Device all registers with write access B0 write 2 bytes

Write/Read Scratch Register Scratch Register B2/B3 write/read 2 bytes

Read Frame Number Frame Number Register B4 read 1 or 2 bytes

Read Chip ID Chip ID Register B5 read 2 bytes

Read Interrupt Register Interrupt Register C0 read 4 bytes

Table 13: Command and register summary

…continued

Name Destination Code (Hex) Transaction[1]

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 26 of 70

Remark: If any change is made to an endpoint conﬁguration which affects the

allocated memory (size, enable/disable), the FIFO memory contents of all endpoints

becomes invalid. Therefore, all valid data must be removed from enabled endpoints

before changing the conﬁguration.

Code (Hex): 20 to 2F — write (control OUT, control IN, endpoint 1 to 14)

Code (Hex): 30 to 3F — read (control OUT, control IN, endpoint 1 to 14)

Transaction — write/read 1 byte

12.1.2 Write/Read Device Address

This command is used to set the USB assigned address in the Address Register and

enable the USB device. The Address Register bit allocation is shown in Table 16.

A USB bus reset sets the device address to 00H (internally) and enables the device.

The value of the Address Register (accessible by the micro) is not altered by the bus

reset. In response to the standard USB request Set Address the ﬁrmware must issue

a Write Device Address command, followed by sending an empty packet to the host.

The new device address is activated when the host acknowledges the empty packet.

Code (Hex): B6/B7 — write/read Address Register

Transaction — write/read 1 byte

Table 14: Endpoint Conﬁguration Register: bit allocation

Bit 76543210

Symbol FIFOEN EPDIR DBLBUF FFOISO FFOSZ[3:0]

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Table 15: Endpoint Conﬁguration Register: bit description

Bit Symbol Description

7 FIFOEN A logic 1 indicates an enabled FIFO with allocated memory.

A logic 0 indicates a disabled FIFO (no bytes allocated).

6 EPDIR This bit deﬁnes the endpoint direction (0 = OUT, 1 = IN). It also

determines the DMA transfer direction (0 = read, 1 = write).

5 DBLBUF A logic 1 indicates that this endpoint has double buffering.

4 FFOISO A logic 1 indicates an isochronous endpoint. A logic 0 indicates

a bulk or interrupt endpoint.

3 to 0 FFOSZ[3:0] Selects the FIFO size according to Table 5

Table 16: Address Register: bit allocation

Bit 76543210

Symbol DEVEN DEVADR[6:0]

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 27 of 70

12.1.3 Write/Read Mode Register

This command is used to access the ISP1181A Mode Register, which consists of

1 byte (bit allocation: see Table 18). In 16-bit bus mode the upper byte is ignored.

The Mode Register controls the DMA bus width, resume and suspend modes,

interrupt activity and SoftConnect operation. It can be used to enable debug mode,

where all errors and Not Acknowledge (NAK) conditions will generate an interrupt.

Code (Hex): B8/B9 — write/read Mode Register

Transaction — write/read 1 byte

[1] Unchanged by a bus reset.

Table 17: Address Register: bit description

Bit Symbol Description

7 DEVEN A logic 1 enables the device.

6 to 0 DEVADR[6:0] This ﬁeld speciﬁes the USB device address.

Table 18: Mode Register: bit allocation

Bit 76543210

Symbol DMAWD reserved GOSUSP reserved INTENA DBGMOD reserved SOFTCT

Reset 0[1] 0000

[1] 0[1] 0[1] 0[1]

Access R/W R/W R/W R/W R/W R/W R/W R/W

Table 19: Mode Register: bit description

Bit Symbol Description

7 DMAWD A logic 1 selects 16-bit DMA bus width (bus conﬁguration modes

0 and 2). A logic 0 selects 8-bit DMA bus width. Bus reset value:

unchanged.

6 - reserved

5 GOSUSP Writing a logic 1 followed by a logic 0 will activate ‘suspend’

mode.

4 - reserved

3 INTENA A logic 1 enables all interrupts. Bus reset value: unchanged.

2 DBGMOD A logic 1 enables debug mode. where all NAKs and errors will

generate an interrupt. A logic 0 selects normal operation, where

interrupts are generated on every ACK (bulk endpoints) or after

every data transfer (isochronous endpoints). Bus reset value:

unchanged.

1 - reserved

0 SOFTCT A logic 1 enables SoftConnect (see Section 7.4). This bit is

ignored if EXTPUL = 1 in the Hardware Conﬁguration Register

(see Table 20). Bus reset value: unchanged.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 28 of 70

12.1.4 Write/Read Hardware Conﬁguration

This command is used to access the Hardware Conﬁguration Register, which

consists of 2 bytes. The ﬁrst (lower) byte contains the device conﬁguration and

control values, the second (upper) byte holds the clock control bits and the clock

division factor. The bit allocation is given in Table 20. A bus reset will not change any

of the programmed bit values.

The Hardware Conﬁguration Register controls the connection to the USB bus, clock

activity and power supply during ‘suspend’ state, output clock frequency, DMA

operating mode and pin conﬁgurations (polarity, signalling mode).

Code (Hex): BA/BB — write/read Hardware Conﬁguration Register

Transaction — write/read 2 bytes

Table 20: Hardware Conﬁguration Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol reserved EXTPUL NOLAZY CLKRUN CLKDIV[3:0]

Reset 00100011

Access R/W R/W R/W R/W R/W R/W R/W R/W

Bit 76543210

Symbol DAKOLY DRQPOL DAKPOL EOTPOL WKUPCS PWROFF INTLVL INTPOL

Reset 01000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Table 21: Hardware Conﬁguration Register: bit description

Bit Symbol Description

15 - reserved

14 EXTPUL A logic 1 indicates that an external 1.5 kΩ pull-up resistor is

used on pin D+ and that SoftConnect is not used. Bus reset

value: unchanged.

13 NOLAZY A logic 1 disables output on pin CLKOUT of the LazyClock

frequency (100 kHz ± 50 %) during ‘suspend’ state. A logic 0

causes pin CLKOUT to switch to LazyClock output after

approximately 2 ms delay, following the setting of bit GOSUSP

in the Mode Register. Bus reset value: unchanged.

12 CLKRUN A logic 1 indicates that the internal clocks are always running,

even during ‘suspend’ state. A logic 0 switches off the internal

oscillator and PLL, when they are not needed. During ‘suspend’

state this bit must be made logic 0 to meet the suspend current

requirements. The clock is stopped after a delay of

approximately 2 ms, following the setting of bit GOSUSP in the

Mode Register. Bus reset value: unchanged.

11 to 8 CLKDIV[3:0] This ﬁeld speciﬁes the clock division factor N, which controls the

clock frequency on output CLKOUT. The output frequency in

MHz is given by . The clock frequency range is

3 MHz to 48 MHz (N=0to15). with a reset value of 12 MHz

(N = 3). The hardware design guarantees no glitches during

frequency change. Bus reset value: unchanged.

7 DAKOLY A logic 1 selects DACK-only DMA mode. A logic 0 selects 8237

compatible DMA mode. Bus reset value: unchanged.

48 N 1+()⁄

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 29 of 70

12.1.5 Write/Read Interrupt Enable Register

This command is used to individually enable/disable interrupts from all endpoints, as

well as interrupts caused by events on the USB bus (SOF, SOF lost, EOT, suspend,

resume, reset). A bus reset will not change any of the programmed bit values.

The command accesses the Interrupt Enable Register, which consists of 4 bytes. The

bit allocation is given in Table 22.

Code (Hex): C2/C3 — write/read Interrupt Enable Register

Transaction — write/read 4 bytes

6 DRQPOL Selects DREQ signal polarity (0 = active LOW, 1 = active

HIGH). Bus reset value: unchanged.

5 DAKPOL Selects DACK signal polarity (0 = active LOW, 1 = active HIGH).

Bus reset value: unchanged.

4 EOTPOL Selects EOT signal polarity (0 = active LOW, 1 = active HIGH).

Bus reset value: unchanged.

3 WKUPCS A logic 1 enables remote wake-up via a LOW level on input CS

(For wake-up on CS to work, VBUS must be present.).

Bus reset value: unchanged.

2 PWROFF A logic 1 enables powering-off during ‘suspend’ state. Output

SUSPEND is conﬁgured as a power switch control signal for

external devices (HIGH during ‘suspend’). This value should

always be initialized to logic 1. Bus reset value: unchanged.

1 INTLVL Selects the interrupt signalling mode on output INT (0 = level,

1 = pulsed). In pulsed mode an interrupt produces an 166 ns

pulse. See Section 13 for details. Bus reset value: unchanged.

0 INTPOL Selects INT signal polarity (0 = active LOW, 1 = active HIGH).

Bus reset value: unchanged.

Table 21: Hardware Conﬁguration Register: bit description

…continued

Bit Symbol Description

Table 22: Interrupt Enable Register: bit allocation

Bit 31 30 29 28 27 26 25 24

Symbol reserved

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Bit 23 22 21 20 19 18 17 16

Symbol IEP14 IEP13 IEP12 IEP11 IEP10 IEP9 IEP8 IEP7

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Bit 15 14 13 12 11 10 9 8

Symbol IEP6 IEP5 IEP4 IEP3 IEP2 IEP1 IEP0IN IEP0OUT

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 30 of 70

12.1.6 Write/Read DMA Conﬁguration

This command deﬁnes the DMA conﬁguration of ISP1181A and enables/disables

DMA transfers. The command accesses the DMA Conﬁguration Register, which

consists of 2 bytes. The bit allocation is given in Table 24. A bus reset will clear bit

DMAEN (DMA disabled), all other bits remain unchanged.

Code (Hex): F0/F1 — write/read DMA Conﬁguration

Transaction — write/read 2 bytes

[1] Unchanged by a bus reset.

Bit 76543210

Symbol reserved IEPSOF IESOF IEEOT IESUSP IERESM IERST

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Table 23: Interrupt Enable Register: bit description

Bit Symbol Description

31 to 24 - reserved; must write logic 0

23 to 10 IEP14 to IEP1 A logic 1 enables interrupts from the indicated endpoint.

9 IEP0IN A logic 1 enables interrupts from the control IN endpoint.

8 IEP0OUT A logic 1 enables interrupts from the control OUT endpoint.

7, 6 - reserved

5 IEPSOF A logic 1 enables 1 ms interrupts upon detection of Pseudo

SOF.

4 IESOF A logic 1 enables interrupt upon SOF detection.

3 IEEOT A logic 1 enables interrupt upon EOT detection.

2 IESUSP A logic 1 enables interrupt upon detection of ‘suspend’ state.

1 IERESM A logic 1 enables interrupt upon detection of a ‘resume’ state.

0 IERST A logic 1 enables interrupt upon detection of a bus reset.

Table 24: DMA Conﬁguration Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol CNTREN SHORTP reserved

Reset 0[1] 0[1] 0[1] 0[1] 0[1] 0[1] 0[1] 0[1]

Access R/W R/W R/W R/W R/W R/W R/W R/W

Bit 76543210

Symbol EPDIX[3:0] DMAEN reserved BURSTL[1:0]

Reset 0[1] 0[1] 0[1] 0[1] 000

[1] 0[1]

Access R/W R/W R/W R/W R/W R/W R/W R/W

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 31 of 70

12.1.7 Write/Read DMA Counter

This command accesses the DMA Counter Register, which consists of 2 bytes. The

bit allocation is given in Table 26. Writing to the register sets the number of bytes for a

DMA transfer. Reading the register returns the number of remaining bytes in the

current transfer. A bus reset will not change the programmed bit values.

The internal DMA counter is automatically reloaded from the DMA Counter Register

when DMA is re-enabled (DMAEN = 1). See Section 12.1.6 for more details.

Code (Hex): F2/F3 — write/read DMA Counter Register

Transaction — write/read 2 bytes

Table 25: DMA Conﬁguration Register: bit description

Bit Symbol Description

15 CNTREN A logic 1 enables the generation of an EOT condition, when the

DMA Counter Register reaches zero. Bus reset value:

unchanged.

14 SHORTP A logic 1 enables short/empty packet mode. When receiving

(OUT endpoint) a short/empty packet an EOT condition is

generated. When transmitting (IN endpoint) this bit should be

cleared. Bus reset value: unchanged.

13 to 8 - reserved

7 to 4 EPDIX[3:0] Indicates the destination endpoint for DMA, see Table 7.

3 DMAEN Writing a logic 1 enables DMA transfer, a logic 0 forces the end

of an ongoing DMA transfer. Reading this bit indicates whether

DMA is enabled (0 = DMA stopped, 1 = DMA enabled). This bit

is cleared by a bus reset.

2 - reserved

1 to 0 BURSTL[1:0] Selects the DMA burst length:

00 — single-cycle mode (1 byte)

01 — burst mode (4 bytes)

10 — burst mode (8 bytes)

11 — burst mode (16 bytes).

Bus reset value: unchanged.

Table 26: DMA Counter Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol DMACRH[7:0]

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Bit 76543210

Symbol DMACRL[7:0]

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 32 of 70

12.1.8 Reset Device

This command resets the ISP1181A in the same way as an external hardware reset

via input RESET. All registers are initialized to their ‘reset’ values.

Code (Hex): F6 — reset the device

Transaction — none

12.2 Data ﬂow commands

Data ﬂow commands are used to manage the data transmission between the USB

endpoints and the system microcontroller. Much of the data ﬂow is initiated via an

interrupt to the microcontroller. The data ﬂow commands are used to access the

endpoints and determine whether the endpoint FIFOs contain valid data.

Remark: The IN buffer of an endpoint contains inputdata for the host, the OUT buffer

receives output data from the host.

12.2.1 Write/Read Endpoint Buffer

This command is used to access endpoint FIFO buffers for reading or writing. First,

the buffer pointer is reset to the beginning of the buffer. Following the command, a

maximum of (N +2) bytes can be written or read, N representing the size of the

endpoint buffer. For 16-bit access the maximum number of words is (M + 1), with M

given by (N +1) DIV 2. After each read/write action the buffer pointer is automatically

incremented by 1 (8-bit bus width) or by 2 (16-bit bus width).

In DMA access the ﬁrst 2 bytes or the ﬁrst word (the packet length) are skipped:

transfers start at the third byte or the second word of the endpoint buffer. When

reading, the ISP1181A can detect the last byte/word via the EOP condition. When

writing to a bulk/interrupt endpoint, the endpoint buffer must be completely ﬁlled

before sending the data to the host. Exception: when a DMA transfer is stopped by an

external EOT condition, the current buffer content (full or not) is sent to the host.

Remark: Reading data after a Write Endpoint Buffer command or writing data after a

Read Endpoint Buffer command data will cause unpredictable behavior of ISP1181A.

Code (Hex): 01 to 0F — write (control IN, endpoint 1 to 14)

Code (Hex): 10, 12 to 1F — read (control OUT, endpoint 1 to 14)

Transaction — write/read maximum N +2 bytes (isochronous endpoint: N ≤1023,

bulk/interrupt endpoint: N ≤32)

The data in the endpoint FIFO must be organized as shown in Table 28. Examples of

endpoint FIFO access are given in Table 29 (8-bit bus) and Table 30 (16-bit bus).

Table 27: DMA Counter Register: bit description

Bit Symbol Description

15 to 8 DMACRH[7:0] DMA Counter Register (high byte)

7 to 0 DMACRL[7:0] DMA Counter Register (low byte)

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Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 33 of 70

Remark: There is no protection against writing or reading past a buffer’s boundary,

against writing into an OUT buffer or reading from an IN buffer. Any of these actions

could cause an incorrect operation. Data residing in an OUT buffer are only

meaningful after a successful transaction. Exception: during DMA access of a

double-buffered endpoint, the buffer pointer automatically points to the secondary

buffer after reaching the end of the primary buffer.

12.2.2 Read Endpoint Status

This command is used to read the status of an endpoint FIFO. The command

accesses the Endpoint Status Register, the bit allocation of which is shown in

Table 31. Reading the Endpoint Status Register will clear the interrupt bit set for the

corresponding endpoint in the Interrupt Register (see Table 48).

All bits of the Endpoint Status Register are read-only. Bit EPSTAL is controlled by the

Stall/Unstall commands and by the reception of a SETUP token (see Section 12.2.3).

Code (Hex): 50 to 5F — read (control OUT, control IN, endpoint 1 to 14)

Table 28: Endpoint FIFO organization

Byte #

(8-bit bus) Word #

(16-bit bus) Description

0 0 (lower byte) packet length (lower byte)

1 0 (upper byte) packet length (upper byte)

2 1 (lower byte) data byte 1

3 1 (upper byte) data byte 2

…… …

(N +1) M = (N + 1) DIV 2 data byte N

Table 29: Example of endpoint FIFO access (8-bit bus width)

A0 Phase Bus lines Byte # Description

1 command D[7:0] - command code (00H to 1FH)

0 data D[7:0] 0 packet length (lower byte)

0 data D[7:0] 1 packet length (upper byte)

0 data D[7:0] 2 data byte 1

0 data D[7:0] 3 data byte 2

0 data D[7:0] 4 data byte 3

0 data D[7:0] 5 data byte 4

……………

Table 30: Example of endpoint FIFO access (16-bit bus width)

A0 Phase Bus lines Word # Description

1 command D[7:0] - command code (00H to 1FH)

D[15:8] - ignored

0 data D[15:0] 0 packet length

0 data D[15:0] 1 data word 1 (data byte 2, data byte 1)

0 data D[15:0] 2 data word 2 (data byte 4, data byte 3)

……………

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 34 of 70

Transaction — read 1 byte

12.2.3 Stall Endpoint/Unstall Endpoint

These commands are used to stall or unstall an endpoint. The commands modify the

content of the Endpoint Status Register (see Table 31).

A stalled control endpoint is automatically unstalled when it receives a SETUP token,

regardless of the packet content. If the endpoint should stay in its stalled state, the

microcontroller can restall it with the Stall Endpoint command.

When a stalled endpoint is unstalled (either by the Unstall Endpoint command or by

receiving a SETUP token), it is also reinitialized. This ﬂushes the buffer: if it is an OUT

buffer it waits for a DATA 0 PID, if it is an IN buffer it writes a DATA 0 PID.

Code (Hex): 40 to 4F — stall (control OUT, control IN, endpoint 1 to 14)

Code (Hex): 80 to 8F — unstall (control OUT, control IN, endpoint 1 to 14)

Transaction — none

Table 31: Endpoint Status Register: bit allocation

Bit 76543210

Symbol EPSTAL EPFULL1 EPFULL0 DATA_PID OVER

WRITE SETUPT CPUBUF reserved

Reset 00000000

Access RRRRRRRR

Table 32: Endpoint Status Register: bit description

Bit Symbol Description

7 EPSTAL This bit indicates whether the endpoint is stalled or not

(1 = stalled, 0 = not stalled).

Set to logic 1 by a Stall Endpoint command, cleared to logic 0 by

an Unstall Endpoint command. The endpoint is automatically

unstalled upon reception of a SETUP token.

6 EPFULL1 A logic 1 indicates that the secondary endpoint buffer is full.

5 EPFULL0 A logic 1 indicates that the primary endpoint buffer is full.

4 DATA_PID This bit indicates the data PID of the next packet (0 = DATA PID,

1 = DATA1 PID).

3 OVERWRITE This bit is set by hardware, a logic 1 indicating that a new Setup

packet has overwritten the previous setup information, before it

was acknowledged or before the endpoint was stalled. This bit is

cleared by reading, if writing the setup data has ﬁnished.

Firmware must check this bit before sending an Acknowledge

Setup command or stalling the endpoint. Upon reading a logic 1

the ﬁrmware must stop ongoing setup actions and wait for a new

Setup packet.

2 SETUPT A logic 1 indicates that the buffer contains a Setup packet.

1 CPUBUF This bit indicates which buffer is currently selected for CPU

access (0 = primary buffer, 1 = secondary buffer).

0 - reserved

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Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 35 of 70

12.2.4 Validate Endpoint Buffer

This command signals the presence of valid data for transmission to the USB host, by

setting the Buffer Full ﬂag of the selected IN endpoint. This indicates that the data in

the buffer is valid and can be sent to the host, when the next IN token is received. For

a double-buffered endpoint this command switches the current FIFO for CPU access.

Remark: For special aspects of the control IN endpoint see Section 9.5.

Code (Hex): 61 to 6F — validate endpoint buffer (control IN, endpoint 1 to 14)

Transaction — none

12.2.5 Clear Endpoint Buffer

This command unlocks and clears the buffer of the selected OUT endpoint, allowing

the reception of new packets. Reception of a complete packet causes the Buffer Full

ﬂag of an OUT endpoint to be set. Any subsequent packets are refused by returning a

NAK condition, until the buffer is unlocked using this command. For a double-buffered

endpoint this command switches the current FIFO for CPU access.

Remark: For special aspects of the control OUT endpoint see Section 9.5.

Code (Hex): 70, 72 to 7F — clear endpoint buffer (control OUT, endpoint 1 to 14)

Transaction — none

12.2.6 Check Endpoint Status

This command is used to check the status of the selected endpoint FIFO without

clearing any status or interrupt bits. The command accesses the Endpoint Status

Image Register, which contains a copy of the Endpoint Status Register. The bit

allocation of the Endpoint Status Image Register is shown in Table 33.

Code (Hex): D0 to DF — check status (control OUT, control IN, endpoint 1 to 14)

Transaction — write/read 1 byte

Table 33: Endpoint Status Image Register: bit allocation

Bit 76543210

Symbol EPSTAL EPFULL1 EPFULL0 DATA_PID OVER

WRITE SETUPT CPUBUF reserved

Reset 00000000

Access RRRRRRRR

Table 34: Endpoint Status Image Register: bit description

Bit Symbol Description

7 EPSTAL This bit indicates whether the endpoint is stalled or not

(1 = stalled, 0 = not stalled).

6 EPFULL1 A logic 1 indicates that the secondary endpoint buffer is full.

5 EPFULL0 A logic 1 indicates that the primary endpoint buffer is full.

4 DATA_PID This bit indicates the data PID of the next packet

(0 = DATA0 PID, 1 = DATA1 PID).

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Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 36 of 70

12.2.7 Acknowledge Setup

This command acknowledges to the host that a SETUP packet was received. The

arrival of a SETUP packet disables the Validate Buffer and Clear Buffer commands

for the control IN and OUT endpoints. The microcontroller needs to re-enable these

commands by sending an Acknowledge Setup command, see Section 9.5.

Code (Hex): F4 — acknowledge setup

Transaction — none

12.3 General commands

12.3.1 Read Endpoint Error Code

This command returns the status of the last transaction of the selected endpoint, as

stored in the Error Code Register. Each new transaction overwrites the previous

status information. The bit allocation of the Error Code Register is shown in Table 35.

Code (Hex): A0 to AF — read error code (control OUT, control IN, endpoint 1 to 14)

Transaction — read 1 byte

3 OVERWRITE This bit is set by hardware, a logic 1 indicating that a new Setup

packet has overwritten the previous setup information, before it

was acknowledged or before the endpoint was stalled. This bit is

cleared by reading, if writing the setup data has ﬁnished.

Firmware must check this bit before sending an Acknowledge

Setup command or stalling the endpoint. Upon reading a logic 1

the ﬁrmware must stop ongoing setup actions and wait for a new

Setup packet.

2 SETUPT A logic 1 indicates that the buffer contains a Setup packet.

1 CPUBUF This bit indicates which buffer is currently selected for CPU

access (0 = primary buffer, 1 = secondary buffer).

0 - reserved

Table 34: Endpoint Status Image Register: bit description

…continued

Bit Symbol Description

Table 35: Error Code Register: bit allocation

Bit 76543210

Symbol UNREAD DATA01 reserved ERROR[3:0] RTOK

Reset 00000000

Access RRRRRRRR

Table 36: Error Code Register: bit description

Bit Symbol Description

7 UNREAD A logic 1 indicates that a new event occurred before the

previous status was read.

6 DATA01 This bit indicates the PID type of the last successfully received

or transmitted packet (0 = DATA0 PID, 1 = DATA1 PID).

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 37 of 70

12.3.2 Unlock Device

This command unlocks the ISP1181A from write-protection mode after a ‘resume’. In

‘suspend’ state all registers and FIFOs are write-protected to prevent data corruption

by external devices during a ‘resume’. Also, the register access for reading is possible

only after the ‘Unlock Device’ command is executed.

After waking up from ‘suspend’ state, the ﬁrmware must unlock the registers and

FIFOs via this command, by writing the unlock code (AA37H) into the Lock Register

(8-bit bus: lower byte ﬁrst). The bit allocation of the Lock Register is given in Table 38.

Code (Hex): B0 — unlock the device

Transaction — write 2 bytes (unlock code)

5 - reserved

4 to 1 ERROR[3:0] Error code. For error description, see Table 37.

0 RTOK A logic 1 indicates that data was received or transmitted

successfully.

Table 37: Transaction error codes

Error code

(Binary) Description

0000 no error

0001 PID encoding error; bits 7 to 4 are not the inverse of bits 3 to 0

0010 PID unknown; encoding is valid, but PID does not exist

0011 unexpected packet; packet is not of the expected type (token, data, or

acknowledge), or is a SETUP token to a non-control endpoint

0100 token CRC error

0101 data CRC error

0110 time-out error

0111 babble error

1000 unexpected end-of-packet

1001 sent or received NAK (Not AcKnowledge)

1010 sent Stall; a token was received, but the endpoint was stalled

1011 overﬂow; the received packet was larger than the available buffer space

1100 sent empty packet (ISO only)

1101 bit stufﬁng error

1110 sync error

1111 wrong (unexpected) toggle bit in DATA PID; data was ignored

Table 36: Error Code Register: bit description

…continued

Bit Symbol Description

Table 38: Lock Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol UNLOCKH[7:0] = AAH

Reset 10101010

Access WWWWWWWW

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Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 38 of 70

12.3.3 Write/Read Scratch Register

This command accesses the 16-bit Scratch Register, which can be used by the

ﬁrmware to save and restore information, for example, the device status before

powering down in ‘suspend’ state. The register bit allocation is given in Table 40.

Code (Hex): B2/B3 — write/read Scratch Register

Transaction — write/read 2 bytes

12.3.4 Read Frame Number

This command returns the frame number of the last successfully received SOF. It is

followed by reading one or two bytes from the Frame Number Register, containing the

frame number (lower byte ﬁrst). The Frame Number Register is shown in Table 42.

Remark: After a bus reset, the value of the Frame Number Register is undeﬁned.

Bit 76543210

Symbol UNLOCKL[7:0] = 37H

Reset 00110111

Access WWWWWWWW

Table 39: Lock Register: bit description

Bit Symbol Description

15 to 0 UNLOCK[15:0] Sending data AA37H unlocks the internal registers and FIFOs

for writing, following a ‘resume’.

Table 40: Scratch Information Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol reserved SFIRH[6:0]

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Bit 76543210

Symbol SFIRL[7:0]

Reset 00000000

Access R/W R/W R/W R/W R/W R/W R/W R/W

Table 41: Scratch Information Register: bit description

Bit Symbol Description

15 - reserved; must be logic 0

14 to 8 SFIRH[6:0] Scratch Information Register (high byte)

7 to 0 SFIRL[7:0] Scratch Information Register (low byte)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 39 of 70

Code (Hex): B4 — read frame number

Transaction — read 1 or 2 bytes

[1] Reset value undeﬁned after a bus reset.

12.3.5 Read Chip ID

This command reads the chip identiﬁcation code and hardware version number. The

ﬁrmware must check this information to determine the supported functions and

features. This command accesses the Chip ID Register, which is shown in Table 46.

Code (Hex): B5 — read chip ID

Transaction — read 2 bytes

Table 42: Frame Number Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol reserved SOFRH[2:0]

Reset[1] 00000000

Access RRRRRRRR

Bit 76543210

Symbol SOFRL[7:0]

Reset[1] 00000000

Access RRRRRRRR

Table 43: Frame Number Register: bit description

Bit Symbol Description

15 to 11 - reserved

10 to 8 SOFRH[2:0] SOF frame number (upper byte)

7 to 0 SOFRL[7:0] SOF frame number (lower byte)

Table 44: Example of Frame Number Register access (8-bit bus width)

A0 Phase Bus lines Byte # Description

1 command D[7:0] - command code (B4H)

0 data D[7:0] 0 frame number (lower byte)

0 data D[7:0] 1 frame number (upper byte)

Table 45: Example of Frame Number Register access (16-bit bus width)

A0 Phase Bus lines Word # Description

1 command D[7:0] - command code (B4H)

D[15:8] - ignored

0 data D[15:0] 0 frame number

Table 46: Chip ID Register: bit allocation

Bit 15 14 13 12 11 10 9 8

Symbol CHIPIDH[7:0]

Reset 81H

Access RRRRRRRR

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 40 of 70

12.3.6 Read Interrupt Register

This command indicates the sources of interrupts as stored in the 4-byte Interrupt

Interrupt Register is shown in Table 48. Bit BUSTATUS is used to verify the current

bus status in the interrupt service routine. Interrupts are enabled via the Interrupt

Enable Register, see Section 12.1.5.

While reading the interrupt register, read all the 4 bytes completely.

Code (Hex): C0 — read interrupt register

Transaction — read 4 bytes

Bit 76543210

Symbol CHIPIDL[7:0]

Reset 41H

Access RRRRRRRR

Table 47: Chip ID Register: bit description

Bit Symbol Description

15 to 8 CHIPIDH[7:0] chip ID code (81H)

7 to 0 CHIPIDL[7:0] silicon version (41H, with 41H representing the BCD encoded

version number)

Table 48: Interrupt Register: bit allocation

Bit 31 30 29 28 27 26 25 24

Symbol reserved

Reset 00000000

Access RRRRRRRR

Bit 23 22 21 20 19 18 17 16

Symbol EP14 EP13 EP12 EP11 EP10 EP9 EP8 EP7

Reset 00000000

Access RRRRRRRR

Bit 15 14 13 12 11 10 9 8

Symbol EP6 EP5 EP4 EP3 EP2 EP1 EP0IN EP0OUT

Reset 00000000

Access RRRRRRRR

Bit 76543210

Symbol BUSTATUS reserved PSOF SOF EOT SUSPND RESUME RESET

Reset 00000000

Access RRRRRRRR

Table 49: Interrupt Register: bit description

Bit Symbol Description

31 to 24 - reserved

23 to 10 EP14 to EP1 A logic 1 indicates the interrupt source(s): endpoint 14 to 1.

9 EP0IN A logic 1 indicates the interrupt source: control IN endpoint.

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Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 41 of 70

13. Interrupts

Figure 8 shows the interrupt logic of the ISP1181A. Each of the indicated USB events

is logged in a status bit of the Interrupt Register. Corresponding bits in the Interrupt

Enable Register determine whether or not an event will generate an interrupt.

Interrupts can be masked globally by means of the INTENA bit of the Mode Register

(see Table 19).

The active level and signalling mode of the INT output is controlled by the INTPOL

and INTLVL bits of the Hardware Conﬁguration Register (see Table 21). Default

settings after reset are active LOW and level mode. When pulse mode is selected, a

pulse of 166 ns is generated when the OR-ed combination of all interrupt bits

changes from logic 0 to logic 1.

8 EP0OUT A logic 1 indicates the interrupt source: control OUT endpoint.

7 BUSTATUS It monitors the current USB bus status (0 = awake,

1 = suspend).

6 - reserved

5 PSOF A logic 1 indicates that an interrupt is issued every 1 ms

because of the Pseudo SOF; after 3 missed SOFs ‘suspend’

state is entered.

4 SOF A logic 1 indicates that a SOF condition was detected.

3 EOT A logic 1 indicates that an internal EOT condition was generated

by the DMA Counter reaching zero.

2 SUSPND A logic 1 indicates that an ‘awake’ to ‘suspend’ change of state

was detected on the USB bus.

1 RESUME A logic 1 indicates that a ‘resume’ state was detected.

0 RESET A logic 1 indicates that a bus reset condition was detected.

Table 49: Interrupt Register: bit description

…continued

Bit Symbol Description

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 42 of 70

Bits RESET, RESUME, EOT and SOF are cleared upon reading the Interrupt

Endpoint Status Register.

Bit BUSTATUS follows the USB bus status exactly, allowing the ﬁrmware to get the

current bus status when reading the Interrupt Register.

SETUP and OUT token interrupts are generated after ISP1181A has acknowledged

the associated data packet. In bulk transfer mode, the ISP1181A will issue interrupts

for every ACK received for an OUT token or transmitted for an IN token.

In isochronous mode, an interrupt is issued upon each packet transaction. The

ﬁrmware must take care of timing synchronization with the host. This can be done via

the Pseudo Start-Of-Frame (PSOF) interrupt, enabled via bit IEPSOF in the Interrupt

Enable Register. If a Start-Of-Frame is lost, PSOF interrupts are generated every

1 ms. This allows the ﬁrmware to keep data transfer synchronized with the host. After

3 missed SOF events the ISP1181A will enter ‘suspend’ state.

An alternative way of handling isochronous data transfer is to enable both the SOF

and the PSOF interrupts and disable the interrupt for each isochronous endpoint.

Fig 8. Interrupt logic.

MGS772

RESET

SUSPND

RESUME

SOF

EP14

...

EP0IN

EP0OUT

EOT

IERST

interrupt register

interrupt enable

IESUSP

IERESM

IESOF

IEP14

...

IEP0IN

IEP0OUT

IEEOT

device mode

INTENA

INTLVL

hardware configuration

INTPOL

PULSE

GENERATOR

INT

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 43 of 70

14. Power supply

The ISP1181A is powered from a single supply voltage, ranging from 4.0 V to 5.5 V.

An integrated voltage regulator provides a 3.3 V supply voltage for the internal logic

and the USB transceiver. This voltage is available at pin Vreg(3.3) for connecting an

external pull-up resistor on USB connection D+. See Figure 9.

The ISP1181A can also be operated from a 3.0 V to 3.6 V supply, as shown in

Figure 10. In this case, the internal voltage regulator is disabled and pin Vreg(3.3) must

be connected to VCC.

15. Crystal oscillator and LazyClock

The ISP1181A has a crystal oscillator designed for a 6 MHz parallel-resonant crystal

(fundamental). A typical circuit is shown in Figure 11. Alternatively, an external clock

signal of 6 MHz can be applied to input XTAL1, while leaving output XTAL2 open.

The 6 MHz oscillator frequency is multiplied to 48 MHz by an internal PLL. This

frequency is used to generate a programmable clock output signal at pin CLKOUT,

ranging from 3 MHz to 48 MHz.

In ‘suspend’ state the normal CLKOUT signal is not available, because the crystal

oscillator and the PLL are switched off to save power. Instead, the CLKOUT signal

can be switched to the LazyClock frequency of 100 kHz ± 50 %.

The oscillator operation and the CLKOUT frequency are controlled via the Hardware

Conﬁguration Register, as shown in Figure 12. The following bits are involved:

•CLKRUN switches the oscillator on and off

•CLKDIV[3:0] is the division factor determining the normal CLKOUT frequency

•NOLAZY controls the LazyClock signal output during ‘suspend’ state.

Fig 9. ISP1181A with a 4.0 V to 5.5 V supply. Fig 10. ISP1181A with a 3.0 V to 3.6 V supply.

VCC

VCC(3.3)

Vreg(3.3)

ISP1181A

004aaa026

4.0 V to 5.5 V

Vref

3.0 V to 3.6 V

004aaa027

VCC

VCC(3.3)

Vreg(3.3)

ISP1181A

Vref

Fig 11. Typical oscillator circuit.

CLKOUT

6 MHz

18 pF

XTAL2

XTAL1

004aaa028

ISP1181A

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 44 of 70

When ISP1181A enters ‘suspend’ state (by setting and clearing bit GOSUSP in the

Mode Register), outputs SUSPEND and CLKOUT change state after approximately

2 ms delay. When NOLAZY = 0, the clock signal on output CLKOUT does not stop,

but changes to the 100 kHz ± 50 % LazyClock frequency.

When resuming from ‘suspend’ state by a positive pulse on input WAKEUP, output

SUSPEND is cleared and the clock signal on CLKOUT is restarted after a 0.5 ms

delay. The timing of the CLKOUT signal at ‘suspend’ and ‘resume’ is given in

Figure 13.

Fig 12. Oscillator and LazyClock logic.

MGS775

CLKRUN

hardware

configuration

CLKDIV[3:0]

NOLAZY

(N + 1) 1

PLL 8×XTAL OSC

LAZYCLOCK

enable

4NOLAZY

CLKOUT

enable

6 MHz 48 MHz

SUSPEND

100 (±50 %) kHz

If enabled, the 100 kHz ± 50 % LazyClock frequency will be output on pin CLKOUT during ‘suspend’ state.

Fig 13. CLKOUT signal timing at ‘suspend’ and ‘resume’.

MGS776

WAKEUP

GOSUSP

1.8 to 2.2 ms 0.5 ms

PLL circuit stable

3 to 4 ms

SUSPEND

CLKOUT

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 45 of 70

16. Power-on reset

The ISP1181A has an internal power-on reset (POR) circuit. Input pin RESET can be

directly connected to VCC. The clock signal on output CLKOUT starts 0.5 ms after

power-on and normally requires 3 to 4 ms to stabilize.

The triggering voltage of the POR circuit is 2.0 V nominal. A POR is automatically

generated when VCC goes below the trigger voltage for a duration longer than 50 µs.

A hardware reset disables all USB endpoints and clears all ECRs, except for the

control endpoint which is ﬁxed and always enabled. Section 9.3 explains how to

(re-)initialize the endpoints.

t1: clock is running

t2: BUS_CONF pins are sampled

t3: registers are accessible

(1) Supply voltage (5 V or 3.3 V), connected externally to pin RESET.

Fig 14. Power-on reset timing.

MGT026

t1t2t3

VCC (1)

2.0 V

0 V

≤ 350 µs

> 50 µs

1 ms 1 ms

POR

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 46 of 70

17. Limiting values

[1] Equivalent to discharging a 100 pF capacitor via a 1.5 kΩ resistor (Human Body Model).

18. Recommended operating conditions

Table 50: Absolute maximum ratings

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol Parameter Conditions Min Max Unit

VCC supply voltage −0.5 +6.0 V

VIinput voltage −0.5 VCC + 0.5 V

Ilatchup latch-up current VI< 0 or VI>V

CC - 100 mA

Vesd electrostatic discharge voltage ILI <1µA[1] -±2000 V

Tstg storage temperature −60 +150 °C

Ptot total power dissipation VCC = 5.5 V - 165 mW

Table 51: Recommended operating conditions

Symbol Parameter Conditions Min Typ Max Unit

VCC supply voltage with regulator 4.0 5.0 5.5 V

without regulator 3.0 3.3 3.6 V

VIinput voltage 0 - VCC V

VI(AI/O) input voltage on analog I/O pins

(D+/D−)0 - 3.6 V

VO(od) open-drain output pull-up voltage 0 - VCC V

Tamb ambient temperature −40 - +85 °C

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 47 of 70

19. Static characteristics

[1] For 3.3 V operation, pin Vreg(3.3) must be connected to pin VCC(3.3).

[2] In ‘suspend’ mode the minimum voltage is 2.7 V.

[3] External loading is not included.

[1] Not applicable for open-drain outputs.

Table 52: Static characteristics; supply pins

GND

=0V; T

amb

−

Cto

C; unless otherwise speciﬁed.

Symbol Parameter Conditions Min Typ Max Unit

Vreg(3.3) regulated supply voltage VCC = 4.0 V to 5.5 V [1] 3.0[2] 3.3 3.6 V

ICC operating supply current VCC = 5.0 V; Tamb =25°C - 26 - mA

VCC = 3.3 V; Tamb =25°C - 22 - mA

ICC(susp) suspend supply current VCC = 5.0 V; Tamb =25°C--20

[3] µA

VCC = 3.3 V; Tamb =25°C--70

[3] µA

Table 53: Static characteristics: digital pins

= 3.3 V

10 % or 5.0 V

10 %; V

GND

=0V; T

amb

−

Cto

C; unless otherwise speciﬁed.

Symbol Parameter Conditions Min Typ Max Unit

Input levels

VIL LOW-level input voltage - - 0.8 V

VIH HIGH-level input voltage 2.0 - - V

Schmitt trigger inputs

Vth(LH) positive-going threshold

voltage 1.4 - 1.9 V

Vth(HL) negative-going threshold

voltage 0.9 - 1.5 V

Vhys hysteresis voltage 0.4 - 0.7 V

Output levels

VOL LOW-level output voltage IOL = rated drive - - 0.4 V

IOL =20µA - - 0.1 V

VOH HIGH-level output voltage IOH = rated drive [1] 2.4 - - V

Leakage current

ILI input leakage current - - ±5µA

Open-drain outputs

IOZ OFF-state output current - - ±5µA

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 48 of 70

[1] D+ is the USB positive data pin; D− is the USB negative data pin.

[2] Includes external resistors of 22 Ω±1 % on both D+ and D−.

[3] This voltage is available at pin Vreg(3.3).

[4] In ‘suspend’ mode the minimum voltage is 2.7 V.

Table 54: Static characteristics: analog I/O pins (D+, D−)[1]

= 3.3 V

10 % or 5.0 V

10 %; V

GND

=0V; T

amb

−

Cto

C; unless otherwise speciﬁed.

Symbol Parameter Conditions Min Typ Max Unit

Input levels

VDI differential input sensitivity |VI(D+)−VI(D−)|0.2 - - V

VCM differential common mode

voltage includes VDI range 0.8 - 2.5 V

VIL LOW-level input voltage - - 0.8 V

VIH HIGH-level input voltage 2.0 - - V

Output levels

VOL LOW-level output voltage RL= 1.5 kΩ to +3.6 V - - 0.3 V

VOH HIGH-level output voltage RL=15kΩ to GND 2.8 - 3.6 V

Leakage current

ILZ OFF-state leakage current - - ±10 µA

Capacitance

CIN transceiver capacitance pin to GND - - 20 pF

Resistance

RPU pull-up resistance on D+SoftConnect = ON 1 - 2 kΩ

ZDRV[2] driver output impedance steady-state drive 29 - 44 Ω

ZINP input impedance 10 - - MΩ

Termination

VTERM[3] termination voltage for

upstream port pull-up (RPU)3.0[4] - 3.6 V

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 49 of 70

20. Dynamic characteristics

[1] Dependent on the crystal oscillator start-up time.

[1] Test circuit: see Figure 33.

[2] Excluding the ﬁrst transition from Idle state.

[3] Characterized only, not tested. Limits guaranteed by design.

Table 55: Dynamic characteristics

= 3.3 V

10 % or 5.0 V

10 %; V

GND

=0V; T

amb

−

Cto

C; unless otherwise speciﬁed.

Symbol Parameter Conditions Min Typ Max Unit

Reset

tW(RESET) pulse width on input RESET crystal oscillator running 50 - - µs

crystal oscillator stopped - 3[1] -ms

Crystal oscillator

fXTAL crystal frequency - 6 - MHz

Table 56: Dynamic characteristics: analog I/O pins (D+, D−)[1]

= 3.3 V

10 % or 5.0 V

10 %; V

GND

=0V;T

amb

−

Cto

C; C

= 50 pF; R

= 1.5 k

Ω

on D

to V

TERM

; unless

otherwise speciﬁed.

Symbol Parameter Conditions Min Typ Max Unit

Driver characteristics

tFR rise time CL=50pF;

10%to90% of|VOH −VOL|4 - 20 ns

tFF fall time CL=50pF;

90%to10% of|VOH −VOL|4 - 20 ns

FRFM differential rise/fall time

matching (tFR/tFF)[2] 90 - 111.11 %

VCRS output signal crossover

voltage [2][3] 1.3 - 2.0 V

Data source timing

tFEOPT source EOP width see Figure 15 [3] 160 - 175 ns

tFDEOP source differential

data-to-EOP transition

skew

see Figure 15 [3] −2- +5ns

Receiver timing

tJR1 receiver data jitter

tolerance for consecutive

transitions

see Figure 16 [3] −18.5 - +18.5 ns

tJR2 receiver data jitter

tolerance for paired

transitions

see Figure 16 [3] −9- +9ns

tFEOPR receiver SE0 width accepted as EOP; see

Figure 15 [3] 82--ns

tFST width of SE0 during

differential transition rejected as EOP; see

Figure 17 [3] --14ns

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 50 of 70

TPERIOD is the bit duration corresponding with the USB data rate.

Full-speed timing symbols have a subscript preﬁx ‘F’, low-speed timings a preﬁx ‘L’.

Fig 15. Source differential data-to-EOP transition skew and EOP width.

mgr776

PERIOD

differential

data lines

crossover point

differential data to

SE0/ EOP skew

N × T

PERIOD

+ t

DEOP

source EOP width: t

EOPT

receiver EOP width: t

EOPR

crossover point

extended

+3.3 V

0 V

TPERIOD is the bit duration corresponding with the USB data rate.

Fig 16. Receiver differential data jitter.

mgr871

PERIOD

differential

data lines

+3.3 V

0 V t

JR1

JR2

consecutive

transitions

N × T

PERIOD

+ t

JR1

paired

transitions

N × T

PERIOD

+ t

JR2

Fig 17. Receiver SE0 width tolerance.

mgr872

differential

data lines

+3.3 V

0 V

FST

IH(min)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 51 of 70

20.1 Parallel I/O timing

[1] Commands Acknowledge Setup, Clear Buffer, Validate Buffer and Write Endpoint Conﬁguration require 180 ns to complete.

Table 57: Dynamic characteristics: parallel interface timing

Symbol Parameter Conditions 8-bit bus 16-bit bus Unit

Min Max Min Max

Read timing (see Figure 18)

tRHAX address hold time after RD

HIGH 0- 0- ns

tAVRL address setup time before RD

LOW 0- 0- ns

tSHDZ data outputs high-impedance

time after CS HIGH -3-3ns

tRHSH chip deselect time after RD

HIGH 0- 0- ns

tRLRH RD pulse width 25 - 25 - ns

tRLDV data valid time after RD LOW - 22 - 22 ns

tSHRL CS HIGH until next ISP1181A

RD 60 - 120 - ns

tSHRL+tRLRH read cycle time 90 - 180 - ns

Write timing (see Figure 19)

tWHAX address hold time after WR

HIGH 1- 1- ns

tAVWL address setup time before WR

LOW 0- 0- ns

tSHWL CS HIGH until next ISP1181A

WR 60 - 120 - ns

tSHWL+tWLWH write cycle time 90/180[1] - 180 - ns

tWLWH WR pulse width 22 - 22 - ns

tWHSH chip deselect time after WR

HIGH 0- 0- ns

tDVWH data setup time before WR

HIGH 5- 5- ns

tWHDZ data hold time after WR HIGH 3 - 3 - ns

ALE timing (see Figure 20)

tLH ALE pulse width 20 - 20 - ns

tAVLL address setup time before ALE

LOW 10 - 10 - ns

tLLAX address hold time after ALE

LOW reading 0 10 0 10 ns

writing 0 - 0 - ns

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 52 of 70

(1) For tSHRL, both CS and RD must be de-asserted.

Fig 18. Parallel interface read timing (I/O and 8237 compatible DMA).

MGS787

tRHAX

tAVRL

tRLRH

tRLDV

tSHDZ

tSHRL(1)

DATA

CS/DACK

tRHSH

(1) For tSHWL, both CS and WR must be de-asserted.

Fig 19. Parallel interface write timing (I/O and 8237 compatible DMA).

MGS789

CS/DACK

DATA

tWHAX

tAVWL

tWHDZ

tDVWH

tWLWH

tWHSH

tSHWL(1)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 53 of 70

20.2 Access cycle timing

[1] Commands Acknowledge Setup, Clear Buffer, Validate Buffer and Write Endpoint Conﬁguration require 180 ns to complete.

Fig 20. ALE timing.

MGS790

AD0

ALE

DATA

tLH

tAVLL

tLLAX

A0 D0

Table 58: Dynamic characteristics: access cycle timing

Symbol Parameter Conditions 8-bit bus 16-bit bus Unit

Min Max Min Max

Write command + write data (see Figure 21 and Figure 22)

Tcy(WC-WD) cycle time for write command,

then write data 100[1] - 205 - ns

Tcy(WD-WD) cycle time for write data 90 - 205 - ns

Tcy(WD-WC) cycle time for write data, then

write command 90 - 205 - ns

Write command + read data (see Figure 23 and Figure 24)

Tcy(WC-RD) cycle time for write command,

then read data 100[1] - 205 - ns

Tcy(RD-RD) cycle time for read data 90 - 205 - ns

Tcy(RD-WC) cycle time for read data, then

write command 90 - 205 - ns

Fig 21. Write command + write data cycle timing.

MGT022

Tcy(WC-WD) Tcy(WD-WD)

command

DATA

datadata

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 54 of 70

(1) Example: read data.

Fig 22. Write data + write command cycle timing.

MGT025

Tcy(WD-WC)

data

DATA

datacommand

(1)

Fig 23. Write command + read data cycle timing.

MGT023

Tcy(WC-RD)

Tcy(RD-RD)

command

DATA

datadata

(1) Example: read data.

Fig 24. Read data + write command cycle timing.

MGT024

Tcy(RD-WC)

data

DATA

data

(1)

command

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 55 of 70

20.3 DMA timing: single-cycle mode

Table 59: Dynamic characteristics: single-cycle DMA timing

Symbol Parameter Conditions 8-bit bus 16-bit bus Unit

Min Max Min Max

8237 compatible mode (see Figure 25)

tASRP DREQ off after DACK on - 40 - 40 ns

Tcy(DREQ) cycle time signal DREQ 90 - 180 - ns

Read in DACK-only mode (see Figure 26)

tASRP DREQ off after DACK on - 40 - 40 ns

tASAP DACK pulse width 25 - 25 - ns

tASAP +

tAPRS

DREQ on after DACK off 90 - 180 - ns

tASDV data valid after DACK on - 22 - 22 ns

tAPDZ data hold after DACK off - 3 - 3 ns

Write in DACK-only mode (see Figure 27)

tASRP DREQ off after DACK on - 40 - 40 ns

tASAP +

tAPRS

DREQ on after DACK off 90 - 180 - ns

tDVAP data setup before DACK off 5 - 5 - ns

tAPDZ data hold after DACK off 3 - 3 - ns

Single-cycle EOT (see Figure 28)

tRSIH input RD/WR HIGH after DREQ on 22 - 22 - ns

tIHAP DACK off after input RD/WR HIGH 0 - 0 - ns

tEOT EOT pulse width EOT on;

DACK on;

RD/WR LOW

22 - 22 - ns

tRLIS input EOT on after RD LOW - 22 - 89 ns

tWLIS input EOT on after WR LOW - 22 - 89 ns

Fig 25. DMA timing in 8237 compatible mode.

MGS792

DREQ

DACK

tASRP

Tcy(DREQ)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 56 of 70

Fig 26. DMA read timing in DACK-only mode.

MGS793

DACK

DREQ

tASRP tAPRS

tASDV tAPDZ

DATA

Fig 27. DMA write timing in DACK-only mode.

MGS794

DACK

DREQ

tASRP tAPRS

tDVAP tAPDZ

DATA

tASAP

(1) tASRP starts from DACK or RD/WR going LOW, whichever occurs later.

(2) The RD/WR signals are not used in DACK-only DMA mode.

(3) The EOT condition is considered valid if DACK, RD/WR and EOT are all active (= LOW).

Fig 28. EOT timing in single-cycle DMA mode.

MGS795

DREQ

tRSIH

tIHAP

tASRP

(1)

tEOT

(3)

tRLIS

tWLIS

EOT

DACK

RD/WR

(2)

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 57 of 70

20.4 DMA timing: burst mode

Table 60: Dynamic characteristics: burst mode DMA timing

Symbol Parameter Conditions 8-bit bus 16-bit bus Unit

Min Max Min Max

Burst (see Figure 29)

tRSIH input RD/WR HIGH after DREQ on 22 - 22 - ns

tILRP DREQ off after input RD/WR LOW - 60 - 60 ns

tIHAP DACK off after input RD/WR HIGH 0 - 0 - ns

tIHIL DMA burst repeat interval (input

RD/WR HIGH to LOW) 90 - 180 - ns

Burst EOT (see Figure 30)

tEOT EOT pulse width EOT on;

DACK on;

RD/WR LOW

22 - 22 - ns

tISRP DREQ off after input EOT on - 40 - 40 ns

tRLIS input EOT on after RD LOW - 22 - 89 ns

tWLIS input EOT on after WR LOW - 22 - 89 ns

Fig 29. Burst mode DMA timing.

MGS796

DACK

DREQ

tRSIH tILRP

tIHIL

tIHAP

RD/WR

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 58 of 70

(1) The EOT condition is considered valid if DACK, RD/WR and EOT are all active (= LOW).

Fig 30. EOT timing in burst mode DMA.

MGS797

DACK

DREQ

tISRP

tEOT(1)

RD/WR

EOT

tRLIS

tWLIS

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 59 of 70

21. Application information

21.1 Typical interface circuits

(1) Use of a 470 Ω resistor assumes that VCC is 5.0 V.

Fig 31. Typical interface circuit for bus conﬁguration mode 0 (shared ports: 16-bit PIO, 16-bit DMA).

004aaa029

22 Ω

470 Ω(1)

0.1

µF0.1

µF

ISP1181A

H8S/2357

Vreg(3.3)

VCC

18 pF

6 MHz

18 pF

RESET

VBUS

D−

D+

XTAL1

XTAL2

D10

D11

D12

D13

D14

D15

DATA1

DATA2

DATA3

DATA4

DATA5

DATA6

DATA7

DATA8

DATA9

DATA10 USB

upstream

connector

DATA11

DATA12

DATA13

DATA14

DATA15

AD0 LINK LED

ALE

BUS_CONF1

BUS_CONF0

CSn

IRQ

INT

SUSPEND

P1.1

WAKEUP

DREQ0

DREQ

DACK

TEND

EOT

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 60 of 70

(1) Use of a 470 Ω resistor assumes that VCC is 5.0 V.

Fig 32. Typical interface circuit for bus conﬁguration mode 2 (shared ports: 8-bit PIO, 8-bit DMA).

004aaa030

22 Ω

470 Ω(1)

ISP1181A

18 pF

6 MHz

18 pF

D−

D+

XTAL1

XTAL2

USB

upstream

connector

AD0 LINK LED

ALE

BUS_CONF1

BUS_CONF0

INT

SUSPEND

WAKEUP

DREQ

DACK

EOT

DMA

CONTROLLER

CS1

MCU_RD

MCU_WR

BUS_GNT

BUS_REQ

CS2

DREQ

DACK

EOT

Vreg(3.3)

VCC

RESET

VBUS

0.1

µF0.1

µF

VCC

D10

D11

D12

D13

D14

D15

8051

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

ALE

PSEN

IRQ

P2.3

P2.0

P2.1

8-BIT

DMA PORT

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 61 of 70

21.2 Interfacing ISP1181A with an H8S/2357 microcontroller

This section gives a summary of the ISP1181A interface with a H8S/2357 (or

compatible) microcontroller. Aspects discussed are: interrupt handling, address

mapping, DMA and I/O port usage for suspend and remote wake-up control. A typical

interface circuit is shown in Figure 31.

21.2.1 Interrupt handling

•ISP1181A: program the Hardware Conﬁguration register to select an active LOW

level for output INT (INTPOL = 0, see Table 20)

•H8S/2357: program the IRQ Sense Control Register (ISCRH and ISCRL) to

specify low-level sensing for the IRQ input.

21.2.2 Address mapping in H8S/2357

The H8S/2357 bus controller partitions its 16 Mbyte address space into eight areas

(0 to 7) of 2 Mbyte each. The bus controller will activate one of the outputs CS0 to

CS7 when external address space for the associated area is accessed.

The ISP1181A can be mapped to any address area, allowing easy interfacing when

the ISP1181A is the only peripheral in that area. If in the example circuit for bus

conﬁguration mode 0 (see Figure 31) the ISP1181A is mapped to address FFFF08H

(in area 7), output CS7 of the H8S/2357 can be directly connected to input CS of the

ISP1181A.

The external bus speciﬁcations, bus width, number of access states and number of

program wait states can be programmed for each address area. The recommended

settings of H8S/2357 for interfacing the ISP1181A are:

•8-bit bus in Bus Width Control Register (ABWCR)

•enable wait states in Access State Control Register (ASTCR)

•1 program wait state in the Wait Control Register (WCRH and WCRL).

21.2.3 Using DMA

The ISP1181A can be conﬁgured for several methods of DMA with the H8S/2357 and

other devices. The interface circuit in Figure 31 shows an example of the ISP1181A

working with the H8S/2357 in single-address DACK-only DMA mode. External

devices are not shown.

For single-address DACK-only mode, ﬁrmware must program the following settings:

•ISP1181A:

–program the DMA Counter register with the total transfer byte count

–program the Hardware Conﬁguration Register to select active level LOW for

DREQ and DACK

–select the target endpoint and transfer direction

–select DACK-only mode and enable DMA transfer.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 62 of 70

21.2.4 Using H8S/2357 I/O Ports

In the interface circuit of Figure 31 pin P1.1 of the H8S/2357 is conﬁgured as a

general purpose output port. This pin drives the ISP1181A’s WAKEUP input to

generate a remote wake-up.

The H8S/2357 has 3 registers to conﬁgure port 1: Port 1 Data Direction Register

(P1DDR), Port 1 Data Register (P1DR) and Port 1 Register (PORT1). Only registers

P1DDR and P1DR must be conﬁgured, register PORT1 is only used to read the

actual levels on the port pins.

•H8S/2357:

–select pin P1.1 to be an output in register P1DDR

–program the desired bit value for P1.1 in register P1DR.

22. Test information

The dynamic characteristics of the analog I/O ports (D+and D−) as listed in Table 56,

were determined using the circuit shown in Figure 33.

Load capacitance:

CL= 50 pF (full-speed mode)

Speed:

full-speed mode only: internal 1.5 kΩ pull-up resistor on D+

Fig 33. Load impedance for D+ and D− pins.

test point

50 pF

22 Ω

15 kΩ

D.U.T

MGS784

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 63 of 70

23. Package outline

Fig 34. TSSOP48 package outline.

UNIT A1A2A3bpcD

(1) E(2) eH

ELL

pQZywv θ

REFERENCES

OUTLINE

VERSION EUROPEAN

PROJECTION ISSUE DATE

IEC JEDEC JEITA

mm 0.15

0.05 0.2

0.1 8

0.1

DIMENSIONS (mm are the original dimensions).

Notes

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.

SOT362-1 99-12-27

03-02-19

detail X

(A )

0.25

124

48 25

pin 1 index

1.05

0.85 0.28

0.17 0.2

0.1 12.6

12.4 6.2

6.0 0.5 1 0.25

8.3

7.9 0.50

0.35 0.8

0.4

0.08

0.8

0.4

EvMA

TSSOP48: plastic thin shrink small outline package; 48 leads; body width 6.1 mm SOT362-1

max.

1.2

2.5

5 mm

scale

MO-153

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 64 of 70

Fig 35. HVQFN48 package outline.

terminal 1

index area

terminal 1

index area

0.51

A4Eh

UNIT Dye

0.2

REFERENCES

OUTLINE

VERSION EUROPEAN

PROJECTION ISSUE DATE

IEC JEDEC JEITA

mm 7.15

6.85

5.25

4.95

7.15

6.85 5.25

4.95

5.5

0.30

0.18

0.80

0.65

0.05

0.00 0.05 0.1

DIMENSIONS (mm are the original dimensions)

SOT619-2 MO-220- - - - - -

6.85

6.65

6.85

6.65

0.5

0.3

0.1

0.05

0 2.5 5 mm

scale

SOT619-2

HVQFN48: plastic thermal enhanced very thin quad flat package; no leads;

48 terminals; body 7 x 7 x 0.85 mm

max.

AA4A1

detail X

y1C

48 37

EE1

02-05-17

02-10-22

b24

1/2 e

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 65 of 70

24. Soldering

24.1 Introduction to soldering surface mount packages

This text gives a very brief insight to a complex technology. A more in-depth account

of soldering ICs can be found in our

Data Handbook IC26; Integrated Circuit

Packages

(document order number 9398 652 90011).

There is no soldering method that is ideal for all surface mount IC packages. Wave

soldering can still be used for certain surface mount ICs, but it is not suitable for ﬁne

pitch SMDs. In these situations reﬂow soldering is recommended. In these situations

reﬂow soldering is recommended.

24.2 Reﬂow soldering

Reﬂow soldering requires solder paste (a suspension of ﬁne solder particles, ﬂux and

binding agent) to be applied to the printed-circuit board by screen printing, stencilling

or pressure-syringe dispensing before package placement. Driven by legislation and

environmental forces the worldwide use of lead-free solder pastes is increasing.

Several methods exist for reﬂowing; for example, convection or convection/infrared

heating in a conveyor type oven. Throughput times (preheating, soldering and

cooling) vary between 100 and 200 seconds depending on heating method.

Typical reﬂow peak temperatures range from 215 to 270 °C depending on solder

paste material. The top-surface temperature of the packages should preferably be

kept:

•below 225 °C (SnPb process) or below 245 °C (Pb-free process)

–for all BGA, HTSSON..T and SSOP..T packages

–for packages with a thickness ≥2.5 mm

–for packages with a thickness < 2.5 mm and a volume ≥350 mm3 so called

thick/large packages.

•below 240 °C (SnPb process) or below 260 °C (Pb-free process) for packages with

a thickness < 2.5 mm and a volume < 350 mm3 so called small/thin packages.

Moisture sensitivity precautions, as indicated on packing, must be respected at all

times.

24.3 Wave soldering

Conventional single wave soldering is not recommended for surface mount devices

(SMDs) or printed-circuit boards with a high component density, as solder bridging

and non-wetting can present major problems.

To overcome these problems the double-wave soldering method was speciﬁcally

developed.

If wave soldering is used the following conditions must be observed for optimal

results:

•Use a double-wave soldering method comprising a turbulent wave with high

upward pressure followed by a smooth laminar wave.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 66 of 70

•For packages with leads on two sides and a pitch (e):

–larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be

parallel to the transport direction of the printed-circuit board;

–smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the

transport direction of the printed-circuit board.

The footprint must incorporate solder thieves at the downstream end.

•For packages with leads on four sides, the footprint must be placed at a 45° angle

to the transport direction of the printed-circuit board. The footprint must

incorporate solder thieves downstream and at the side corners.

During placement and before soldering, the package must be ﬁxed with a droplet of

adhesive. The adhesive can be applied by screen printing, pin transfer or syringe

dispensing. The package can be soldered after the adhesive is cured.

Typical dwell time of the leads in the wave ranges from 3 to 4 seconds at 250 °C or

265 °C, depending on solder material applied, SnPb or Pb-free respectively.

A mildly-activated ﬂux will eliminate the need for removal of corrosive residues in

most applications.

24.4 Manual soldering

Fix the component by ﬁrst soldering two diagonally-opposite end leads. Use a low

voltage (24 V or less) soldering iron applied to the ﬂat part of the lead. Contact time

must be limited to 10 seconds at up to 300 °C.

When using a dedicated tool, all other leads can be soldered in one operation within

2 to 5 seconds between 270 and 320 °C.

24.5 Package related soldering information

[1] For more detailed information on the BGA packages refer to the

(LF)BGA Application Note

(AN01026); order a copy from your Philips Semiconductors sales ofﬁce.

[2] All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the

maximum temperature (with respect to time) and body size of the package, there is a risk that internal

or external package cracks may occur due to vaporization of the moisture in them (the so called

popcorn effect). For details, refer to the Drypack information in the

Data Handbook IC26; Integrated

Circuit Packages; Section: Packing Methods

Table 61: Suitability of surface mount IC packages for wave and reﬂow soldering

methods

Package[1] Soldering method

Wave Reﬂow[2]

BGA, HTSSON..T[3], LBGA, LFBGA, SQFP,

SSOP..T[3], TFBGA, USON, VFBGA not suitable suitable

DHVQFN, HBCC, HBGA, HLQFP, HSO, HSOP,

HSQFP, HSSON, HTQFP, HTSSOP, HVQFN,

HVSON, SMS

not suitable[4] suitable

PLCC[5], SO, SOJ suitable suitable

LQFP, QFP, TQFP not recommended[5][6] suitable

SSOP, TSSOP, VSO, VSSOP not recommended[7] suitable

CWQCCN..L[8], PMFP[9], WQCCN..L[8] not suitable not suitable

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 67 of 70

[3] These transparent plastic packages are extremely sensitive to reﬂow soldering conditions and must

on no account be processed through more than one soldering cycle or subjected to infrared reﬂow

soldering with peak temperature exceeding 217 °C±10 °C measured in the atmosphere of the reﬂow

oven. The package body peak temperature must be kept as low as possible.

[4] These packages are not suitable for wave soldering. On versions with the heatsink on the bottom

side, the solder cannot penetrate between the printed-circuit board and the heatsink. On versions with

the heatsink on the top side, the solder might be deposited on the heatsink surface.

[5] If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave

direction. The package footprint must incorporate solder thieves downstream and at the side corners.

[6] Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it

is deﬁnitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.

[7] Wave soldering is suitable for SSOP, TSSOP, VSO and VSOP packages with a pitch (e) equal to or

larger than 0.65 mm; it is deﬁnitely not suitable for packages with a pitch (e) equal to or smaller than

0.5 mm.

[8] Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered

pre-mounted on ﬂex foil. However, the image sensor package can be mounted by the client on a ﬂex

foil by using a hot bar soldering process. The appropriate soldering proﬁle can be provided on

request.

[9] Hot bar soldering or manual soldering is suitable for PMFP packages.

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 68 of 70

25. Revision history

Table 62: Revision history

Rev Date CPCN Description

05 20041208 200412002 Product data (9397 750 13959)

Modiﬁcations:

•Updated terminology from device to peripheral, where applicable

•Updated to the current document style

•Figure 3 “Pin conﬁguration HVQFN48.”: made CS active LOW

•Section 9.2 “Endpoint FIFO size”: removed “(512 bytes for non-isochronous FIFOs)”

from the second last paragraph

•Section 11 “Suspend and resume”: updated the complete section

•Section 12.1.4 “Write/Read Hardware Conﬁguration”: changed bit name from CKDIV to

CLKDIV

•Table 32 “Endpoint Status Register: bit description”: changed the description for bit 7

from “The endpoint automatically resumes upon reception of a SETUP token.” to “The

endpoint is automatically unstalled upon reception of a SETUP token.”

•Section 12.2.3 “Stall Endpoint/Unstall Endpoint”: updated second and third paragraphs:

–second paragraph: changed “A stalled control endpoint automatically resumes when

it receives a SETUP token, regardless of the packet content.” to “A stalled control

endpoint is automatically unstalled when it receives a SETUP token, regardless of

the packet content.”

–third paragraph: changed “When a stalled endpoint resumes (either by the Unstall

Endpoint command or by receiving a SETUP token), it is also re-initialized.” to “When

a stalled endpoint is unstalled (either by the Unstall Endpoint command or by

receiving a SETUP token), it is also re-initialized.”

•Created a separate section for “Recommended operating conditions”

•Removed old Section 19.1 “Timing symbols”

•Table 57 “Dynamic characteristics: parallel interface timing”: updated values of

parameters tRHAX and tWHAX. Added parameters tSHRL and tSHWL.

04 20020716 - Product data (9397 750 09613)

03 20020108 - Product data (9397 750 09007)

02 20010919 - Preliminary data (9397 750 08734)

01 20010725 - Objective data (9397 750 08602)

9397 750 13959

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

Product data Rev. 05 — 08 December 2004 69 of 70

Contact information

For additional information, please visit http://www.semiconductors.philips.com.

For sales ofﬁce addresses, send e-mail to: sales.addresses@www.semiconductors.philips.com.Fax: +31 40 27 24825

26. Data sheet status

[1] Please consult the most recently issued data sheet before initiating or completing a design.

[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at

URL http://www.semiconductors.philips.com.

[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.

27. Deﬁnitions

Short-form speciﬁcation — The data in a short-form speciﬁcation is

extracted from a full data sheet with the same type number and title. For

detailed information see the relevant data sheet or data handbook.

Limiting values deﬁnition — Limiting values given are in accordance with

the Absolute Maximum Rating System (IEC 60134). Stress above one or

more of the limiting values may cause permanent damage to the device.

These are stress ratings only and operation of the device at these or at any

other conditions above those given in the Characteristics sections of the

speciﬁcation is not implied. Exposure to limiting values for extended periods

may affect device reliability.

Application information — Applications that are described herein for any

of these products are for illustrative purposes only. Philips Semiconductors

make no representation or warranty that such applications will be suitable for

the speciﬁed use without further testing or modiﬁcation.

28. Disclaimers

Life support — These products are not designed for use in life support

appliances, devices, or systems where malfunction of these products can

reasonably be expected to result in personal injury. Philips Semiconductors

customers using or selling these products for use in such applications do so

at their own risk and agree to fully indemnify Philips Semiconductors for any

damages resulting from such application.

Right to make changes — Philips Semiconductors reserves the right to

make changes in the products - including circuits, standard cells, and/or

software - described or contained herein in order to improve design and/or

performance. When the product is in full production (status ‘Production’),

relevant changes will be communicated via a Customer Product/Process

Change Notiﬁcation (CPCN). Philips Semiconductors assumes no

responsibility or liability for the use of any of these products, conveys no

licence or title under any patent, copyright, or mask work right to these

products, and makes no representations or warranties that these products are

free from patent, copyright, or mask work right infringement, unless otherwise

speciﬁed.

29. Trademarks

ACPI — is an open industry speciﬁcation for PC power management,

co-developed by Intel Corp., Microsoft Corp. and Toshiba

GoodLink — is a trademark of Koninklijke Philips Electronics N.V.

OnNow — is a trademark of Microsoft Corp.

SoftConnect — is a trademark of Koninklijke Philips Electronics N.V.

Zip — is a registered trademark of Iomega Corp.

Level Data sheet status[1] Product status[2][3] Deﬁnition

I Objective data Development This data sheet contains data from the objective speciﬁcation for product development. Philips

Semiconductors reserves the right to change the speciﬁcation in any manner without notice.

II Preliminary data Qualiﬁcation This data sheet contains data from the preliminary speciﬁcation. Supplementary data will be published

at a later date. Philips Semiconductors reserves the right to change the speciﬁcation without notice, in

order to improve the design and supply the best possible product.

III Product data Production This data sheet contains data from the product speciﬁcation. Philips Semiconductors reserves the

right to make changes at any time in order to improve the design, manufacturing and supply. Relevant

changes will be communicated via a Customer Product/Process Change Notiﬁcation (CPCN).

Printed in The Netherlands

All rights are reserved. Reproduction in whole or in part is prohibited without the prior

written consent of the copyright owner.

The information presented in this document does not form part of any quotation or

contract, is believed to be accurate and reliable and may be changed without notice. No

liability will be accepted by the publisher for any consequence of its use. Publication

thereof does not convey nor imply any license under patent- or other industrial or

intellectual property rights.

Date of release: 08 December 2004 Document order number: 9397 750 13959

Contents

Philips Semiconductors ISP1181A

Full-speed USB peripheral controller

1 General description. . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3 Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4 Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . 2

5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

6 Pinning information. . . . . . . . . . . . . . . . . . . . . . . . . . . 4

6.1 Pinning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7 Functional description . . . . . . . . . . . . . . . . . . . . . . . . 9

7.1 Analog transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7.2 Philips Serial Interface Engine (SIE) . . . . . . . . . . . . . 9

7.3 Memory Management Unit (MMU) and integrated

RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7.4 SoftConnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7.5 GoodLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.6 Bit clock recovery. . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.7 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.8 PLL clock multiplier . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.9 Parallel I/O (PIO) and Direct Memory Access

(DMA) interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

8 Modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . 11

9 Endpoint descriptions. . . . . . . . . . . . . . . . . . . . . . . . 11

9.1 Endpoint access. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

9.2 Endpoint FIFO size . . . . . . . . . . . . . . . . . . . . . . . . . 12

9.3 Endpoint initialization . . . . . . . . . . . . . . . . . . . . . . . . 14

9.4 Endpoint I/O mode access. . . . . . . . . . . . . . . . . . . . 14

9.5 Special actions on control endpoints . . . . . . . . . . . . 14

10 DMA transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

10.1 Selecting an endpoint for DMA transfer . . . . . . . . . . 15

10.2 8237 compatible mode. . . . . . . . . . . . . . . . . . . . . . . 16

10.3 DACK-only mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

10.4 End-Of-Transfer conditions. . . . . . . . . . . . . . . . . . . . 18

10.4.1 Bulk endpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

10.4.2 Isochronous endpoints. . . . . . . . . . . . . . . . . . . . . . . 19

11 Suspend and resume . . . . . . . . . . . . . . . . . . . . . . . . 20

11.1 Suspend conditions . . . . . . . . . . . . . . . . . . . . . . . . . 20

11.1.1 Powered-off application . . . . . . . . . . . . . . . . . . . . . . 21

11.2 Resume conditions. . . . . . . . . . . . . . . . . . . . . . . . . . 22

11.3 Control bits in suspend and resume. . . . . . . . . . . . . 22

12 Commands and registers . . . . . . . . . . . . . . . . . . . . . 23

12.1 Initialization commands . . . . . . . . . . . . . . . . . . . . . . 25

12.1.1 Write/Read Endpoint Conﬁguration . . . . . . . . . . . . . 25

12.1.2 Write/Read Device Address. . . . . . . . . . . . . . . . . . . 26

12.1.3 Write/Read Mode Register. . . . . . . . . . . . . . . . . . . . 27

12.1.4 Write/Read Hardware Conﬁguration . . . . . . . . . . . . 28

12.1.5 Write/Read Interrupt Enable Register . . . . . . . . . . . 29

12.1.6 Write/Read DMA Conﬁguration . . . . . . . . . . . . . . . . 30

12.1.7 Write/Read DMA Counter . . . . . . . . . . . . . . . . . . . . 31

12.1.8 Reset Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

12.2 Data ﬂow commands . . . . . . . . . . . . . . . . . . . . . . . . 32

12.2.1 Write/Read Endpoint Buffer . . . . . . . . . . . . . . . . . . . 32

12.2.2 Read Endpoint Status . . . . . . . . . . . . . . . . . . . . . . . 33

12.2.3 Stall Endpoint/Unstall Endpoint . . . . . . . . . . . . . . . . 34

12.2.4 Validate Endpoint Buffer. . . . . . . . . . . . . . . . . . . . . . 35

12.2.5 Clear Endpoint Buffer . . . . . . . . . . . . . . . . . . . . . . . . 35

12.2.6 Check Endpoint Status. . . . . . . . . . . . . . . . . . . . . . . 35

12.2.7 Acknowledge Setup . . . . . . . . . . . . . . . . . . . . . . . . . 36

12.3 General commands . . . . . . . . . . . . . . . . . . . . . . . . . 36

12.3.1 Read Endpoint Error Code . . . . . . . . . . . . . . . . . . . . 36

12.3.2 Unlock Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

12.3.3 Write/Read Scratch Register . . . . . . . . . . . . . . . . . . 38

12.3.4 Read Frame Number . . . . . . . . . . . . . . . . . . . . . . . . 38

12.3.5 Read Chip ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

12.3.6 Read Interrupt Register . . . . . . . . . . . . . . . . . . . . . . 40

13 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

14 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

15 Crystal oscillator and LazyClock . . . . . . . . . . . . . . . 43

16 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

17 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

18 Recommended operating conditions. . . . . . . . . . . . 46

19 Static characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 47

20 Dynamic characteristics . . . . . . . . . . . . . . . . . . . . . . 49

20.1 Parallel I/O timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

20.2 Access cycle timing . . . . . . . . . . . . . . . . . . . . . . . . . 53

20.3 DMA timing: single-cycle mode . . . . . . . . . . . . . . . . 55

20.4 DMA timing: burst mode . . . . . . . . . . . . . . . . . . . . . . 57

21 Application information. . . . . . . . . . . . . . . . . . . . . . . 59

21.1 Typical interface circuits . . . . . . . . . . . . . . . . . . . . . . 59

21.2 Interfacing ISP1181A with an H8S/2357

microcontroller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

21.2.1 Interrupt handling . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

21.2.2 Address mapping in H8S/2357. . . . . . . . . . . . . . . . . 61

21.2.3 Using DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

21.2.4 Using H8S/2357 I/O Ports . . . . . . . . . . . . . . . . . . . . 62

22 Test information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

23 Package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

24 Soldering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

24.1 Introduction to soldering surface mount packages . . 65

24.2 Reﬂow soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

24.3 Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

24.4 Manual soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

24.5 Package related soldering information . . . . . . . . . . . 66

25 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

26 Data sheet status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

27 Deﬁnitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

28 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

29 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69