Register bit assignment, Table 282: cardbus socket present state register – Digi NS9750 User Manual
Page 473

w w w . d i g i e m b e d d e d . c o m
4 4 9
P C I - t o - A H B B r i d g e
Register bit assignment
Bits
Access
Mnemonic
Reset
Description
D31
R
YV_SKT
0
When set, indicates that
VCC=Y.Y
volts can be
supplied to the socket.
D30
R
XV_SKT
0
When set, indicates that
VCC=X.X
volts can be
supplied to the socket.
D29
R
V3_SKT
0
When set, indicates that
VCC=3.3
volts can be
supplied to the socket.
D28
R
V5_SKT
0
When set, this bit indicates that
VCC=5
volts can be
supplied to the socket.
D27
Hard-wired
to 0
ZV_SUPPORT
0
Zoomed video support
Always set to 0, as NS9750 does not support this bit.
D26:14
Hard-wired
to 0
Reserved
N/A
N/A
D13
R
YV_CARD
0
When set, indicates that the card inserted into the
socket supports
VCC=Y.Y
volts.
This bit can also be set by writing a 1 to the
FYV_CARD bit in the CardBus Socket Force Event
register.
D12
R
XV_CARD
0
When set, indicates that the card inserted into the
socket supports
VCC=X.X
volts.
This bit can also be set by writing a 1 to the
FXV_CARD in the CardBus Socket Fore Event
register.
Table 282: Cardbus Socket Present State register
Reserved
BAD_
VCC_
REQ
DATA_
LOST
NOTA_
CARD
CINT
CB_
CARD
CARD_
16
PWR_
CYC
CCD2 CCD1
CSTS
CHG
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
V3_
SKT
V5_
SKT
ZV_
SUPP
YV_
SKT
XV_
SKT
Reserved
YV_
CARD
XV_
CARD
V3_
CARD
V5_
CARD