AM79C940JC/W AMD [Advanced Micro Devices], AM79C940JC/W Datasheet - Page 3
AM79C940JC/W
Manufacturer Part Number
AM79C940JC/W
Description
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C940JCW.pdf
(144 pages)
- Current page: 3 of 144
- Download datasheet (2Mb)
BLOCK DIAGRAM
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
2. The EADI port is active at all times.
DBUS 15–0
active regardless of which network port is active, and some are reconfigured.
RDTREQ
ADD 4–0
TDTREQ
BE 1–0
EDSEL
SLEEP
RESET
SCLK
INTR
EOF
R/W
FDS
DTV
CS
TC
PORT CNTRL
TCK
Interface
TDI
Unit
JTAG
Bus
TMS
TDO
Command
XMT FIFO
Registers
RCV FIFO
& Status
Control
FIFO
Am79C940
802.3
MAC
Core
XTAL1
10BASE-T
Control
EADI
GPSI
Port
MAU
Port
Port
Port
AUI
DAI
XTAL2
LNKST
DXCVR
CLSN
SRDCLK
SRD
SF/BD
EAM/R
DO
DI
CI
TXD
TXP
RXD
TXDAT
TXEN
RXDAT
RXCRS
TXDAT+
TXEN
SRDCLK
RXDAT
RXCRS
CLSN
RXPOL
STDCLK
C16235D-1
EADI Port
AUI
10BASE-T
DAI Port
GPSI
3
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