參數(shù)資料
型號: FW323
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): 31/152頁
文件大小: 1625K
代理商: FW323
Agere Systems Inc.
31
Data Sheet, Rev. 2
October 2001
FW323 05
1394A PCI PHY/Link Open Host Controller Interface
Internal Registers
(continued)
Table 16. OHCI Base Address Register Description
Bit
31:12
Field Name
OHCIREG_PTR
Type
RW
Description
OHCI Register Pointer.
Specifies the upper 20 bits of the 32-bit OHCI
base address register.
OHCI Register Size.
This field returns 0s when read, indicating that
the OHCI registers require a 4 Kbyte region of memory.
OHCI Register Prefetch.
This bit returns 0 when read, indicating that
the OHCI registers are nonprefetchable.
OHCI Memory Type.
This field returns 0s when read, indicating that
the OHCI base address register is 32 bits wide and mapping can be
done anywhere in the 32-bit memory space.
OHCI Memory Indicator.
This bit returns 0 when read, indicating that
the OHCI registers are mapped into system memory space.
11:4
OHCI_SZ
R
3
OHCI_PF
R
2:1
OHCI_MEMTYPE
R
0
OHCI_MEM
R
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