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參數(shù)資料
| 型號： | AM79C961AKCW |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | PCnet ⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| 中文描述： | 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132 |
| 封裝： | PLASTIC, QFP-132 |
| 文件頁數(shù)： | 85/85頁 |
| 文件大小： | 1088K |
| 代理商： | AM79C961AKCW |
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Am79C961A
85
P R E L I M I N A R Y
on 3 LED outputs. One LED (LED0) is dedicated to dis-
playing 10BASE-T Link Status. The status signals
available are Collision, Jabber, Receive, Receive Polar-
ity, Transmit, Receive Address Match, and Full Duplex
Link Status. If more than one status signal is enabled,
they are ORed together. An optional pulse stretcher is
available for each programmable output. This allows
emulation of the TPEX (Am79C98) and TPEX
+
(Am79C100) LED outputs.
Each status signal is ANDed with its corresponding
enable signal. The enabled status signals run to a com-
mon OR gate:
The output from the OR gate is run through a pulse
stretcher, which consists of a 3-bit shift register clocked
at 38 Hz. The data input of the shift register is at logic
0. The OR gate output asynchronously sets all three
bits of the shift register when its output goes active. The
output of the shift register controls the associated LEDx
pin. Thus, the pulse stretcher provides an LED output
of 52 ms to 78 ms.
Refer to the section “ISA Bus Configuration Registers”
for information on LED control via the ISACSRs.
Signal
Behavior
COL
Active during collision activity on the network
FDLS
Active when Full Duplex operation is enabled
and functioning on the selected network port
JAB
Active when the PCnet-ISA II is jabbering on
the network
LNKST
Active during Link OK Not active during Link
Down
RCV
Active while receiving data
RVPOL
Active during receive polarity is OK Not active
during reverse receive polarity
RCVADDM
Active during Receive with Address Match
XMT
Active while transmitting data
AND
FDLS
FDLSE
AND
RCVM
RCVM E
AND
XMT
XMT E
AND
RVPOL
RVPOL E
AND
RCV
RCV E
AND
JAB
JAB E
AND
COL
COL E
OR
To
Pulse
Stretcher
AND
RCVADDM
RCVADDE
19364A-18
LED Control Logic
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| AM79C961AKIW | PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| AM79C961AVCW | PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C961AKI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C961AKI/W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C961AKIW | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| AM79C961APDLUTS | 制造商:Advanced Micro Devices 功能描述: |
| AM79C961AVC | 制造商:Rochester Electronics LLC 功能描述: 制造商:Advanced Micro Devices 功能描述:LAN Node Controller, 144 Pin, TQFP |
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