參數資料
型號: PCI1510GVF
廠商: Texas Instruments, Inc.
英文描述: PC CARD CONTROLLERS
中文描述: PC卡控制器
文件頁數: 106/128頁
文件大小: 735K
代理商: PCI1510GVF
516
5.17 ExCA Memory Windows 04 Offset-Address Low-Byte Registers
These registers contain the low byte of the 16-bit memory window offset address for memory windows 0, 1, 2, 3, and
4. The 8 bits of these registers correspond to bits A19A12 of the offset address.
Bit
7
6
5
4
3
2
1
0
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Register:
Offset:
Register:
Offset:
Register:
Offset:
Register:
Offset:
Type:
Default:
ExCA memory window 0 offset-address low-byte
CardBus socket address + 814h; ExCA offset 14h
ExCA memory window 1 offset-address low-byte
CardBus socket address + 81Ch; ExCA offset 1Ch
ExCA memory window 2 offset-address low-byte
CardBus socket address + 824h; ExCA offset 24h
ExCA memory window 3 offset-address low-byte
CardBus socket address + 82Ch; ExCA offset 2Ch
ExCA memory window 4 offset-address low-byte
CardBus socket address + 834h; ExCA offset 34h
Read/Write
00h
5.18 ExCA Memory Windows 04 Offset-Address High-Byte Registers
These registers contain the high 6 bits of the 16-bit memory window offset address for memory windows 0, 1, 2, 3,
and 4. The lower 6 bits of these registers correspond to bits A25A20 of the offset address. In addition, the write
protection and common/attribute memory configurations are set in this register. See Table 513 for a complete
description of the register contents.
Bit
7
6
5
4
3
2
1
0
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Register:
Offset:
Register:
Offset:
Register:
Offset:
Register:
Offset:
Type:
Default:
ExCA memory window 0 offset-address high-byte
CardBus socket address + 815h; ExCA offset 15h
ExCA memory window 1 offset-address high-byte
CardBus socket address + 81Dh; A ExCA offset 1Dh
ExCA memory window 2 offset-address high-byte
CardBus socket address + 825h; ExCA offset 25h
ExCA memory window 3 offset-address high-byte
CardBus socket address + 82Dh; ExCA offset 2Dh
ExCA memory window 4 offset-address high-byte
CardBus socket address + 835h; ExCA offset 35h
Read/Write
00h
Table 513. ExCA Memory Windows 04 Offset-Address High-Byte Registers Description
BIT
SIGNAL
TYPE
FUNCTION
7
WINWP
RW
Write protect. Bit 7 specifies whether write operations to this memory window are enabled. This bit is encoded as:
0 = Write operations are allowed (default)
1 = Write operations are not allowed
6
REG
RW
Bit 6 specifies whether this memory window is mapped to card attribute or common memory. This bit is encoded
as:
0 = Memory window is mapped to common memory (default)
1 = Memory window is mapped to attribute memory
50
OFFHB
RW
Offset-address high byte. Bits 50 represent the upper address bits A25A20 of the memory window
offset address.
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