參數(shù)資料
型號: FW322
英文描述: 1394A PCI PHY/Link Open Host Controller Interface
中文描述: 1394A端口物理層的PCI /鏈接開放主機(jī)控制器接口
文件頁數(shù): 29/148頁
文件大?。?/td> 1723K
代理商: FW322
Lucent Technologies Inc.
29
Data Sheet, Rev. 1
February 2001
FW322
1394A PCI PHY/Link Open Host Controller Interface
Internal Registers
(continued)
OHCI Base Address Register
The OHCI base address register is programmed with a base address referencing the memory-mapped OHCI con-
trol. When BIOS writes all 1s to this register, the value read back is FFFF F000h, indicating that 4 Kbytes of mem-
ory address space are required for the OHCI registers.
Table 15. OHCI Base Address Register
Register:
Type:
Offset:
Default:
OHCI base address register
Read/Write
10h
0000 0000h
Bit
Field
Name
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
R
R
R
R
R
R
R
R
R
R
R
Type
Default
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
OHCIREG_PTR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OHCI_SZ
OHCI_PF
OHCI_MEMTYPE
OHCI_MEM
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