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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: 46/82頁
文件大小: 918K
代理商: W89C840AF
W89C840AF
-
46
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Publication Release Date:October 2000
Revision 1.01
13:8
R/W
BL
Burst Length
BL defines the maximum number of the long words that can be
transferred
within
one
The burst length configuration is as following.
PCI
burst
transaction.
[13:8] Burst Length
---------------------------------------------
00H refer to CA
01H 1 long word
02H 2 long word
04H 4 long word
08H 8 long word
10H 16 long word
20H 32 long word
other reserved
7
R/W
BBE
Buffer With Big Endian
When set, the data buffers are treated with big endian ordering.
When reset, the data buffers are treated with little endian
ordering.
6:2
R/W
SKIP
Skip Length Between Descriptors
This field specifies the skip length between two descriptors (from
the start address of the current descriptor to the start address of
the next descriptor). The unit of the skip length is long word.
The default value after hardware or software reset is 04H.
1
R/W
ARB
Arbitration Between Tx And Rx Processes
When set, the TX process and RX process will have the right to
use the internal bus with the same priority. When reset, the RX
process will have higher priority than TX process with regarding
to the internal bus utilization.
0
R/W
SWR
Software Reset.
Set SWR to high will reset most internal registers (except that
C38, C3c, C40, C44, C48, and PCI Configuration Registers).
The software reset will be lasted for 4 PCI clocks and the bit will
self-clean after software reset completed. If any consequent
access to the W89C840AF is coming during this reset process,
the W89C840AF will delay asserting TRDY# until the reset
process is completed. This bit is default 0 after hardware reset.
C04/CTSDR Transmit Start Demand Register
The register C04/CTSDR is used to request the W89C840AF to do a transmission process.
Bit
Attribute
Bit name
Description
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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