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參數資料
型號: 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: 33/82頁
文件大小: 918K
代理商: W89C840AF
W89C840AF
-
33
-
Publication Release Date:October 2000
Revision 1.01
5:3
R
---
Reserved. Fixed at 0.
2
R/W
BM
Bus Master.
Set BM to high will allow W89C840AF acting as a bus master.
Reset BM to low will disable the W89C840AF
ability.
bus master
1
R/W
MS
Memory Space.
Set MS to high will allow W89C840AF to respond to memory
space access by the host.
0
R/W
IOS
I/O Space.
Set IOS to high will allow W89C840AF to respond to I/O space
access by the host.
F08/FREV Device Revision Register
This register, a read-only with built-in code, shows W89C840AF revision number and its
class code.
Bit
Attribute
Bit name
Description
31:24
R
BC
Base Class Code.
Fixed at 02h to indicate a network controller.
23:16
R
SC
Subclass Code.
Fixed at 00h to indicate a Ethernet controller.
15:8
R
IC
Interface Code. Fixed at 0.
7:0
R
REV
Revision ID.
This field represents the revision number.
Loaded from EEPROM after hardware reset de-asserted
F0C/FLT Latency Timer Register
This register specify the W89C840AF master bus latency timer.
Bit
Attribute
Bit name
Description
31:16
R
---
Fixed to 0.
15:8
R/W
LT
Latency Timer.
Specify, in units of PCI clocks, the latency timer value of
W89C840AF. When W89C840AF asserts FRAMEB, its latency
timer starts counting up. The W89C840AF will initiate the
transaction termination as soon as its GNT# de-asserted If the timer
expired before W89C840AF de-asserts FRAMEB.
7:0
R
---
Fixed at 0.
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相關代理商/技術參數
參數描述
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