參數(shù)資料
型號(hào): MB86967
廠商: Fujitsu Limited
英文描述: LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces
中文描述: 局域網(wǎng)控制器與PC卡,ISA總線和通用總線接口
文件頁數(shù): 50/129頁
文件大小: 1499K
代理商: MB86967
50
MB86967
(3) BMPR11: 16 Collision Control Register
BMPR11 controls operation of the data link controller after a 16 collisions occur.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
16COL
CNTL 2
0
Bit 1
16COL
CNTL 1
0
Bit 0
16COL
CNTL 0
0
Read/Write
0
0
0
0
0
Initial Value
0
0
0
0
0
Bit no.
7 to 3
Bit name
Not used
Operation
Read
Write
Read/
Write
Value
0
0
Function
The read values of these bits is always 0.
Writing 1 is prohibited. Always write 0 at writing.
2 to 0
16COL CNTL
2 to 0
16COL CNTL
2
1
1
1
Operation after 16COLs Occur
0
0
Similar to ordinary collisions, the transmit
packet causing 16COLs is retransmitted
automatically (Auto Mode).
The next packet is transmitted
automatically after skipping the transmit
packet causing the 16COLs (Auto Mode).
When 16COLs occur, stop the transmitted
data link controller temporarily. To resume
transmission, write the values listed in the
table below to this register. These values
are valid only when written. Write them to
this register each time transmission stops
after 16COLs occur (Manual Mode).
1
1
1
0
1
×
16COL CNTL
2
1
0
1
Operation when Resuming
Transmission in Manual Mode
0
0
Similar to ordinary collisions, the transmit
packet causing 16COLs is retransmitted.
The next packet is transmitted after
skipping the transmit packet causing the
16COLs.
0
1
1
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