參數(shù)資料
型號: PCI1620PDV
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁數(shù): 77/164頁
文件大小: 720K
代理商: PCI1620PDV
4
9
4.15 PCI Bus Number Register
The PCI bus number register is programmed by the host system to indicate the bus number of the PCI bus to which
the PCI1620 is connected. The PCI1620 uses this register in conjunction with the CardBus bus number and
subordinate bus number registers to determine when to forward PCI configuration cycles to its secondary buses.
Bit
7
6
5
4
3
2
1
0
Name
PCI bus number
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
PCI bus number
18h (Functions 0, 1)
Read/Write
00h
4.16 CardBus Bus Number Register
The CardBus bus number register is programmed by the host system to indicate the bus number of the CardBus bus
to which the PCI1620 is connected. The PCI1620 uses this register in conjunction with the PCI bus number and
subordinate bus number registers to determine when to forward PCI configuration cycles to its secondary buses. This
register is separate for each PCI1620 controller function.
Bit
7
6
5
4
3
2
1
0
Name
CardBus bus number
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
CardBus bus number
19h
Read/Write
00h
4.17 Subordinate Bus Number Register
The subordinate bus number register is programmed by the host system to indicate the highest numbered bus below
the CardBus bus. The PCI1620 uses this register in conjunction with the PCI bus number and CardBus bus number
registers to determine when to forward PCI configuration cycles to its secondary buses. This register is separate for
each CardBus controller function.
Bit
7
6
5
4
3
2
1
0
Name
Subordinate bus number
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
Subordinate bus number
1Ah
Read/Write
00h
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