STE10 Datasheet, PDF (6/66 Pages) STMicroelectronics – PCI 10/100 ETHERNET CONTROLLER WITH INTEGRATED PHY 5V

STE10/100
Table 1. Pin Description
Pin No. Name
Type
21
TRDY#
I/O
22
DEVSEL#
I/O
23
STOP#
I/O
24
PERR#
I/O
25
SERR#
O/D
26
PAR
I/O
BootROM/EEPROM Interface
56~59 BrA0~3
I/O
61~66 BrA4~9
80~86 BrA10~15
87
BrA16/
LED M2 -
Fd/Col
67~71 BrD0~4
O
72 BrD5/EDO
O/I
73
BrD6/EDI
O/O
74 BrD7/ECK O/O
76
EECS
O
77
BrCS#
O
78
BrOE#
O
79
BrWE#
O
Physical Interface
98
X1
I
97
X2
O
107,109 TX+, TX-
O
105,104 RX+, RX-
I
101
Iref
O
Description
Target device is ready to begin data transaction
Device select. Indicates that a PCI target device address has been decoded
PCI target device request to the PCI master to stop the current transaction
Data parity error detected, driven by the device receiving data
Address parity error
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
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.
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
Chip Select of serial EEPROM
BootROM Chip Select
BootROM Read Output Enable for flash ROM application
BootROM Write Enable for flash ROM application.
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.
The differential Transmit outputs of 100BASE-TX or 10BASE-T, these pins
connect directly to Magnetic.
The differential Receive inputs of 100BASE-TX or 10BASE-T, these pins connect
directly from Magnetic.
Reference Resistor connecting pin for reference current, directly connects a 5K
Ohm ± 1% resistor to Vss.
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