參數(shù)資料
型號: TSB82AA2I
廠商: Texas Instruments, Inc.
英文描述: 1394b OHCI-LYNX CONTROLLER
中文描述: 的1394b OHCI的山貓控制器
文件頁數(shù): 29/104頁
文件大?。?/td> 461K
代理商: TSB82AA2I
39
3.10 TI Extension Base Address Register
The TI extension base address register is programmed with a base address referencing the memory-mapped TI
extension registers. When BIOS writes all 1s to this register, the value read back is FFFF F800h, indicating that at
least 2K bytes of memory address space are required for the TI registers. See Table 39 for a complete description
of the register contents.
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
TI extension base address
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
TI extension base address
Type
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Type:
Offset:
Default:
TI extension base address
Read/Write, Read-only
14h
0000 0000h
Table 39. TI Base Address Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
3111
TIREG_PTR
R/W
TI register pointer. This field specifies the upper 21 bits of the 32-bit TI base address register.
104
TI_SZ
R
TI register size. This field returns 0s when read, indicating that the TI registers require a 2K-byte
region of memory.
3
TI_PF
R
TI register prefetch. Bit 3 returns 0 when read, indicating that the TI registers are nonprefetchable.
21
TI_MEMTYPE
R
TI memory type. This field returns 0s when read, indicating that the TI base address register is 32 bits
wide and mapping can be done anywhere in the 32-bit memory space.
0
TI_MEM
R
TI memory indicator. Bit 0 returns 0 when read, indicating that the TI registers are mapped into system
memory space.
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