參數(shù)資料
型號: MB86967PFV
元件分類: 微控制器/微處理器
英文描述: 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數(shù): 93/129頁
文件大?。?/td> 1519K
代理商: MB86967PFV
66
MB86967
(4) Write to CCR
6. LAN Card Configuration Register
(1) CCR0: Card Configuration Option Register (00007F0H)
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
PD0
to
PD7
ROMS ROMRD ROMAD
Byte access
(8 bits)
7F0H to
7F6H
01
0
1
0
Don’t
care
Even
byte
HH
L
1
Don’t
care
Don’t
care
HH
L
Word access
(16 bits)
00
0
1
0
×
Don’t
care
Even
byte
HH
L
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read
SRESET
LevIREQ
Configuration index
Write
Initial Value
01000000
Bit no.
Bit name
Operation
Value
Function
7
SRESET
(Software Reset)
Read/Write
0
When 0 is written to this bit, the MB86967 enters the
hardware reset state or the same state as that after hardware
reset.
1
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.
6LevIREQ
(Level Interrupt
Request)
Read
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.
5 to 0
CONF INDX
(Configuration
Index)
Read/Write
These bits are used to select 32 configuration indexes
provided for the card.
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