STE10 datasheet(6/66 Pages) STMICROELECTRONICS

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STE10/100

6/66

TRDY#

I/O

Target device is ready to begin data transaction

DEVSEL#

I/O

Device select. Indicates that a PCI target device address has been decoded

STOP#

I/O

PCI target device request to the PCI master to stop the current transaction

PERR#

I/O

Data parity error detected, driven by the device receiving data

SERR#

O/D

Address parity error

PAR

I/O

Parity. Even parity computed for AD[31:0] and C/BE[3:0]; master drives PAR for

address and write data phase, target drives PAR for read data phase

BootROM/EEPROM Interface

56~59

61~66

80~86

BrA0~3

BrA4~9

BrA10~15

BrA16/

LED M2 -

Fd/Col

I/O

ROM data bus

Provides up to 128kB EPROM or Flash-ROM application space.

This pin can be programmed as mode 2 LED display for Full Duplex or Collision

status. It will be driven (LED on) continually when a full duplex configuration is

detected, or it will be driven at a 20 Hz blinking frequency when a collision status

is detected in the half duplex configuration.

67~71

BrD0~4

BrD5/EDO

BrD6/EDI

BrD7/ECK

O/I

O/O

BootROM data bus (0~7)

EDO: Data output of serial EEPROM, data input to STE10/100

EDI:Data input to serial EEPROM, data output from STE10/100

ECK:Clock input to serial EEPROM, sourced by STE10/100

EECS

Chip Select of serial EEPROM

BrCS#

BootROM Chip Select

BrOE#

BootROM Read Output Enable for flash ROM application

BrWE#

BootROM Write Enable for flash ROM application.

Physical Interface

25 MHz reference clock input for Physical portion. When an external 25 MHz

crystal is used, this pin will be connected to one of its terminals, and X2 will be

connected to the other terminal. If an external 25 MHz oscillator is used, then this

pin will be connected to the oscillator’s output pin.

25 MHz reference clock output for Physical portion. When an external 25MHz

crystal is used, this pin will be connected to one of the crystal terminals (see X1,

above). If an external clock source is used, then this pin should be left open.

107,109

TX+, TX-

The differential Transmit outputs of 100BASE-TX or 10BASE-T, these pins

connect directly to Magnetic.

105,104

RX+, RX-

The differential Receive inputs of 100BASE-TX or 10BASE-T, these pins connect

directly from Magnetic.

101

Iref

Reference Resistor connecting pin for reference current, directly connects a 5K

Ohm

± 1% resistor to Vss.

Table 1. Pin Description

Pin No.

Name

Type

Description

STE10 数据表(PDF) 6 Page - STMicroelectronics

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