參數(shù)資料
型號: MB86967PFV
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces
中文描述: 1 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP80
封裝: PLASTIC, LQFP-80
文件頁數(shù): 52/129頁
文件大?。?/td> 1499K
代理商: MB86967PFV
52
MB86967
(5) BMPR13: DMA Burst/Transceiver Mode Control Register
The BMPR13 sets the DMA transfer cycle count between the host system and MB86967 and the operation
modes of the 10BASE-T transceiver.
Bit 7
Bit 6
Bit 5
LINK
TEST
ENA
0
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read
I/O BASE
UNLOCK
0
0
0
0
DMA
BRST 1
DMA
BRST 0
Write
Initial Value
1
0
0
0
0
0
0
Bit no.
7
Bit name
I/O BASE
UNLOCK
Operation
Read/Write
Value
0
Function
The I/O base address is not changed even after an I/O-read
operation to address X12H.
An I/O-read operation to address X12H increments the values
of the I/O base address select signals (IOSEL0 to IOSEL2),
causing a change in the I/O base address (This is valid only in
the jumperless ISA bus mode).
The read value of this bit is always 0.
Writing 1 is prohibited. Always write 0 to this bit at writing.
The link test on the 10BASE-T transceiver is enabled.
The link test on the 10BASE-T transceiver is disabled.
The read values of these bits is always 0.
Writing 1 is prohibited. Always write 0 to these bits at writing.
The DMA transfer cycle count is set by one bus request
(These bits are invalid in the PC card mode).
1
6
Not used
Read/Write
5
LINK TEST
ENA
Read/Write
0
1
4 to 2
Not used
Read/Write
1 and 0 DMA BRST
1 and 0
Read/Write
BRST1 BRST0
0
0
1
1
DAM Transfer Cycle Count (Max.)
1 (single DMA)
4
18
12
0
1
0
1
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