參數(shù)資料
型號(hào)： PCI1520-EP
英文描述： Military Enhanced Plastic PC Card Controllers Data Manual
中文描述： 軍事增強(qiáng)塑料PC卡控制器數(shù)據(jù)手冊(cè)
文件頁數(shù)： 115/125頁
文件大?。?/td> 716K
代理商： PCI1520-EP
6
–
4
6.3
Socket Present-State Register
The socket present-state register reports information about the socket interface. Write transactions to the socket force
event register (CB offset 0Ch, see Section 6.4) are reflected here, as well as general socket interface status.
Information about PC Card V
CC
support and card type is only updated at each insertion. Also note that the PCI1520
uses CCD1 and CCD2 during card identification, and changes on these signals during this operation are not reflected
in this register. See Table 6
–
4 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
Socket present-state
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
1
1
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
Socket present-state
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
X
0
0
0
X
X
X
Register:
Offset:
Type:
Default:
Socket present-state
CardBus socket address + 08h
Read-only
3000 00XXh
Table 6
–
4. Socket Present-State Register Description
BIT
SIGNAL
TYPE
FUNCTION
31
YVSOCKET
R
YV socket. Bit 31 indicates whether or not the socket can supply VCC = Y.Y V to PC Cards. The PCI1520
does not support Y.Y-V VCC; therefore, this bit is always reset unless overridden by the socket force event
register (CB offset 0Ch, see Section 6.4). This bit is hardwired to 0.
30
XVSOCKET
R
XV socket. Bit 30 indicates whether or not the socket can supply VCC = X.X V to PC Cards. The PCI1520
does not support X.X-V VCC; therefore, this bit is always reset unless overridden by the socket force event
register (CB offset 0Ch, see Section 6.4). This bit is hardwired to 0.
29
3VSOCKET
R
3-V socket. Bit 29 indicates whether or not the socket can supply VCC = 3.3 V to PC Cards. The PCI1520
does support 3.3-V VCC; therefore, this bit is always set unless overridden by the socket force event
register (CB offset 0Ch, see Section 6.4).
28
5VSOCKET
R
5-V socket. Bit 28 indicates whether or not the socket can supply VCC = 5 V to PC Cards. The PCI1520
does support 5-V VCC; therefore, this bit is always set unless overridden by the socket force event register
(CB offset 0Ch, see Section 6.4).
27
ZVSUPPORT
R
Zoomed-video support. This bit indicates whether or not the socket has support for zoomed video.
0 = Zoomed video is not supported.
1 = Zoomed video is supported.
26
–
14
RSVD
R
Reserved. Bits 27
–
14 return 0s when read.
13
YVCARD
R
YV card. Bit 13 indicates whether or not the PC Card inserted in the socket supports VCC = Y.Y V.
0 = Y.Y-V VCC is not supported.
1 = Y.Y-V VCC is supported.
XV card. Bit 12 indicates whether or not the PC Card inserted in the socket supports VCC = X.X V.
0 = X.X-V VCC is not supported.
1 = X.X-V VCC is supported.
3-V card. Bit 11 indicates whether or not the PC Card inserted in the socket supports VCC = 3.3 V.
0 = 3.3-V VCC is not supported.
1 = 3.3-V VCC is supported.
12
XVCARD
R
11
3VCARD
R
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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