Cardbus socket control register – Digi NS9750 User Manual
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P C I b u s a r b i t e r
4 5 4
N S 9 7 5 0 H a r d w a r e R e f e r e n c e
CardBus Socket Control register
Address: A030 1010
The CardBus Socket Control register is used only for CardBus applications.
Register bit assignment
Bits
Access
Mnemonic
Reset
Description
D31:12
Hardwired
to 0
Reserved
N/A
N/A
D11
Hardwired
to 0
ZV_ACTIVITY
0
Zoomed video activity bit
Hardwired to 0.
D10
Hardwired
to 0
STANDARDZVREG
0
Standardized zoomed video register model
support
Hardwired to 0.
D09
R/W
ZVEN
0
Zoomed video enable
Defaults to 0
D08
Hardwired
to 0
Reserved
N/A
N/A
D07
R/W
STOP_CLK
0
Stop CardBus clock
Defaults to 0.
D06:04
R/W
VCC_CTL
000
Socket VCC control
000
0 V
001
Reserved
010
5 V
011
3.3 V
1xx
Reserved
D03
Hardwired
to 0
Reserved
N/A
N/A
Table 284: CardBus Socket Control register
Reserved
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
ZV_
ACTI-
VITY
Reserved
ZVEN
STOP_
CLK
Rsvd
STDZ
VREG
VCC_CTL
Rsvd
VPP_CTL