AM79C940KC/W 데이터 시트보기 (PDF) - Advanced Micro Devices

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AM79C940KC/W

Media Access Controller for Ethernet (MACE™)

Advanced Micro Devices 

BLOCK DIAGRAM

XTAL1 XTAL2

DBUS 15–0

ADD 4–0

R/W

CS

FDS

DTV

EOF

RDTREQ

TDTREQ

BE 1–0

INTR

SCLK

EDSEL

TC

SLEEP

RESET

Bus

Interface

Unit

JTAG

PORT CNTRL

RCV FIFO

XMT FIFO

FIFO

Control

802.3

MAC

Core

EADI

Port

Control

AUI

Port

10BASE-T

MAU

Command

DAI

& Status

Port

Registers

GPSI

Port

DXCVR

CLSN

SRDCLK

SRD

SF/BD

EAM/R

DO±

DI±

CI±

TXD±

TXP±

RXD

LNKST

RXPOL

TXDAT±

TXEN

RXDAT

RXCRS

STDCLK

TXDAT+

TXEN

SRDCLK

RXDAT

RXCRS

CLSN

EADI Port

AUI

10BASE-T

DAI Port

GPSI

TDI TDO

C16235D-1

TCK TMS

Notes:

1. Only one of the network ports AUI, 10BASE-T, DAI port or GPSI can be active at any time. Some shared signals are

active regardless of which network port is active, and some are reconfigured.

2. The EADI port is active at all times.

Am79C940

3

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