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參數(shù)資料
型號(hào)： W89C840AF
廠商： WINBOND ELECTRONICS CORP
元件分類： 微控制器/微處理器
英文描述： 100/10Mbps Ethernet Controller
中文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP128
封裝： PLASTIC, QFP-128
文件頁數(shù)： 54/82頁
文件大?。?/td> 918K
代理商： W89C840AF
W89C840AF
-
54
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Publication Release Date:October 2000
Revision 1.01
13
R/W
TXON
Transmit On.
When set, the transmission process will be started (leave the Idle
state, at first, and fetch the transmission descriptor according to the
configuration of C10/CTDLA ).
When reset, the transmission state machine will be stopped after the
current frame is completed (transmitted successfully or transmission
abort with excessive collision).
The register C10/CTDLA must be programmed before setting
TXON high.
12
R
---
Reserved. Fixed at 0.
11:10
R/W
LBK
Loopback Mode.
The LBK selects the W89C840AF loop-back modes:
LBK[11:10] Loop-back Mode
--------------- -----------------------
00 Normal mode
01 Internal Loop-back
10 External Loop-back
9
R/W
FD
Full Duplex Mode.
When set, the W89C840AF will perform the full duplex function.
When reset, the W89C840AF works in half duplex mode. In full
duplex mode, the W89C840AF can transmit and receive packets at
the same time. In half duplex mode, the W89C840AF can only
exclusively either transmit or receive. The W89C840AF is not
allowed to be programmed in internal loop-back mode when it is in
full duplex mode.
To change this mode setting, be sure W89C840AF is completely
idle and the Receive On bit (RXON) and the Transmit On bit
(TXON) are both reset.
8
R
---
Reserved. Fixed at 0.
7
R/W
AEP
Accept Error Packet.
When set, all incoming packets passed address filtering will be
accepted, including runt packets, CRC error packets, and dribbling
bit error packets. When reset, only the valid incoming packets will
be accepted. Default 0.
6
R/W
ARP
Accept Runt Packet.
When set, the incoming packets pass the address filtering with the
length less than 64 bytes are accepted. When reset, the incoming
packets pass the address filtering with the length less than 64 bytes
are rejected. Default 0.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W89C840F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN NODE CONTROLLER
W89C841D 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-IN - 1 10/100M FAST ETHERNET CONTROLLER
W89C841F 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-IN - 1 10/100M FAST ETHERNET CONTROLLER
W89C841F/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3-IN-1 100BASE-TX/FX & 10BASE-T Ethernet Controller
W89C880F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Hub Controller
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