- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366550 > AM79C940JCW (Advanced Micro Devices, Inc.) Media Access Controller for Ethernet (MACE) PDF資料下載
參數(shù)資料
| 型號(hào)： | AM79C940JCW |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Media Access Controller for Ethernet (MACE) |
| 中文描述： | 媒體訪問控制器（MACE發(fā)生以太網(wǎng)） |
| 文件頁(yè)數(shù)： | 2/122頁(yè) |
| 文件大小： | 914K |
| 代理商： | AM79C940JCW |
第1頁(yè)當(dāng)前第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)
AMD
2
Am79C940
Additional features also enhance over-all system
design. The individual transmit and receive FIFOs
optimize system overhead, providing substantial
latency during packet transmission and reception, and
minimizing intervention during normal network error
recovery. The integrated Manchester encoder/decoder
eliminates the need for an external Serial Interface
Adapter (SIA) in the node system. If support for an
external encoding/decoding scheme is desired, the
General Purpose Serial Interface (GPSI) allows direct
access to/from the MAC. In addition, the Digital Attach-
ment Interface (DAI), which is a simplified electrical
attachment specification, allows implementation of
MAUs that do not require DC isolation between the MAU
and DTE. The DAI port can also be used to indicate
transmit, receive, or collision status by connecting LEDs
to the port. The MACE device also provides an External
Address Detection Interface (EADI) to allow external
hardware
applications.
address
filtering
in
internetworking
The Am79C940 MACE chip is offered in a Plastic Lead-
less Chip Carrier (84-pin PLCC), a Plastic Quad Flat
Package (100-pin PQFP), and a Thin Quad Flat Pack-
age (TQFP 80-pin). There are several small functional
and physical differences between the 80-pin TQFP and
the 84-pin PLCC and 100-pin PQFP configurations.
Because of the smaller number of pins in the TQFP con-
figuration versus the PLCC configuration, four pins are
not bonded out. Though the die is identical in all three
package configurations, the removal of these four pins
does cause some functionality differences between the
TQFP and the PLCC and PQFP configurations. De-
pending on the application, the removal of these pins will
or will not have an effect.
BLOCK DIAGRAM
DBUS 15-0
ADD 4-0
R/
W
CS
FDS
DTV
EOF
RDTREQ
TDTREQ
BE
1–0
INTR
SCLK
EDSEL
TC
SLEEP
RESET
16235C-1
XTAL1
FIFO
Control
EADI Port
Bus
Interface
Unit
802.3
MAC
Core
ENCODER/
DECODER
(PLS)
XMT FIFO
RCV FIFO
Command
& Status
Registers
JTAG
PORT CNTRL
TCK
TDI
TMS
TDO
XTAL2
EADI
Port
Control
AUI
Port
10BASE-T
MAU
DAI
Port
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
AUI
10BASE-T
DAI Port
GPSI
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM79C940KCW | Media Access Controller for Ethernet (MACE) |
| AM79C960 | PCnetTM-ISA Single-Chip Ethernet Controller |
| AM79C960KC | PCnetTM-ISA Single-Chip Ethernet Controller |
| AM79C960KCW | PCnetTM-ISA Single-Chip Ethernet Controller |
| AM79C961AKCW | PCnet ⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C940JI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C940JI/W | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE⑩) |
| AM79C940KC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C940KC/W | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE⑩) |
| AM79C940KCW | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE) |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。