DM9008F datasheet(7/68 Pages) ETC

7 / 68 page

DM9008

ISA/Plug & Play Super Ethernet Contoller

Final

Version :DM9008-DS-F02

June 14, 2000

Pin Description (continued)

Pin No.

Symbol

I/O

Description

NETWORK INTERFACE PINS

RX-

RX+

RECEIVE INPUT: Differential receive input pair from the transceiver

CD-

CD+

COLLISION INPUT: Differential collision input pair from the

transceiver

TPTX+

TPTX-

TP Driver Outputs. These two outputs provide the TP drivers with

pre-distortion capability

TPRX+

TPRX-

TP Receive Input. A differential receiver tie to the receive

transformer pair of the twisted-pair wire.

The receive pair of the twisted-pair medium is driven with 10

Mbits/s Manchester-encoded data

LILED

OPEN

DRAIN

LINK and Traffic LED Driver: If TP is LINK-pass, this pin outputs low.

This pin will go low for 80ms and then into high impedance state for

50ms to indicate the presence of traffic on the network

No connection

POWER SUPPLY PINS

36, 47, 48

AVCC

+5V DC power supply for analog CKT. A decoupling capacitor

should be connected between these pins and GND for analog CKT

43, 44, 51

AGND

GND for analog CKT

1, 53, 72

VCC

+5V DC power supply for digital CKT. A decoupling capacitor should

be connected between these pins and GND for digital CKT

52, 73, 74,

75, 100

GND

GND for digital CKT

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