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): 66/129頁
文件大?。?/td> 1499K
代理商: MB86967
66
MB86967
(4) Write to CCR
6. LAN Card Configuration Register
(1) CCR0: Card Configuration Option Register (00007F0
H
)
The card configuration option register (CCR0) sets a software reset, interrupt signal, and configuration index.
Mode
Address REG CE2 CE1 OE IOWR WE PA0
PD8
to
PD15
Don’t
care
Don’t
care
Don’t
care
PD0
to
PD7
Even
byte
Don’t
care
Even
byte
ROMS ROMRD ROMAD
Byte access
(8 bits)
7F0
H
to
7F6
H
0
1
0
1
1
0
0
H
H
L
1
H
H
L
Word access
(16 bits)
0
0
0
1
1
0
×
H
H
L
Bit 7
Bit 6
LevIREQ
1
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read
Write
SRESET
Configuration index
Initial Value
0
0
0
0
0
0
0
Bit no.
7
Bit name
SRESET
(Software Reset)
Operation
Read/Write
Value
0
Function
When 0 is written to this bit, the MB86967 enters the
hardware reset state or the same state as that after hardware
reset.
Reset state; this is the same as the hardware reset state
except that this bit is not cleared.
When this bit is set, the pointers and registers in the LAN
controller are also reset.
Since the MB86967 is in the level interrupt request mode, 1 is
always read in the I/O interface card mode. This bit is not
affected by writing.
These bits are used to select 32 configuration indexes
provided for the card.
1
6
LevIREQ
(Level Interrupt
Request)
CONF INDX
(Configuration
Index)
Read
5 to 0
Read/Write
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