參數(shù)資料
型號: PCI1221GHK
廠商: Texas Instruments, Inc.
英文描述: KPT 11C 11#16 SKT PLUG
中文描述: PC卡控制器
文件頁數(shù): 90/123頁
文件大?。?/td> 1659K
代理商: PCI1221GHK
90
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
ExCA address window enable register (index 06h)
Bit
7
6
5
4
3
2
1
0
Name
ExCA address window enable
Type
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
Register:
Type:
Offset:
ExCA address window enable
Read only, read/write (see individual bit descriptions)
CardBus socket address + 806h; Card A ExCA offset 06h
Card B ExCA offset 46h
Default:
Description: This register enables/disables the memory and I/O windows to the 16-bit PC Card. By default,
all windows to the card are disabled. The PCI1221 does not acknowledge PCI memory or I/O
cycles to the card if the corresponding enable bit in this register is 0, regardless of the
programming of the memory or I/O window start/end/offset address registers. See Table 45
for a complete description of the register contents.
00h
Table 45. ExCA Address Window Enable Register (Index 06h)
BIT
SIGNAL
TYPE
FUNCTION
7
IOWIN1EN
R/W
I/O window 1 enable. Bit 7 enables/disables I/O window 1 for the PC Card. This bit is encoded as:
0 = I/O window 1 disabled (default)
1 = I/O window 1 enabled
6
IOWIN0EN
R/W
I/O window 0 enable. Bit 6 enables/disables I/O window 0 for the PC Card. This bit is encoded as:
0 = I/O window 0 disabled (default)
1 = I/O window 0 enabled
5
RSVD
R
Reserved. Bit 5 is read only and returns 0 when read. Write transactions have no effect.
4
MEMWIN4EN
R/W
Memory window 4 enable. Bit 4 enables/disables memory window 4 for the PC Card. This bit is
encoded as:
0 = Memory window 4 disabled (default)
1 = Memory window 4 enabled
3
MEMWIN3EN
R/W
Memory window 3 enable. Bit 3 enables/disables memory window 3 for the PC Card. This bit is
encoded as:
0 = Memory window 3 disabled (default)
1 = Memory window 3 enabled
2
MEMWIN2EN
R/W
Memory window 2 enable. Bit 2 enables/disables memory window 2 for the PC Card. This bit is
encoded as:
0 = Memory window 2 disabled (default)
1 = Memory window 2 enabled
1
MEMWIN1EN
R/W
Memory window 1 enable. Bit 1 enables/disables memory window 1 for the PC Card. This bit is
encoded as:
0 = Memory window 1 disabled (default)
1 = Memory window 1 enabled
0
MEMWIN0EN
R/W
Memory window 0 enable. Bit 0 enables/disables memory window 0 for the PC Card. This bit is
encoded as:
0 = Memory window 0 disabled (default)
1 = Memory window 0 enabled
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