7.22 Subsystem Access Register
The contents of the subsystem access register are aliased to the subsystem vendor ID and subsystem ID registers
at PCI offsets 2Ch and 2Eh, respectively. See Table 7−15 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
Type
Default
Bit
Subsystem access
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Type
Default
Subsystem access
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
Register:
Offset:
Type:
Subsystem access
50h
Read/Write
0000 0000h
Default:
Table 7−15. Subsystem Access Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31−16
SubsystemID
RW
Subsystem device ID. The value written to this field is aliased to the subsystem ID register at
PCI offset 2Eh.
15−0
SubsystemVendorID
RW
Subsystem vendor ID. The value written to this field is aliased to the subsystem vendor ID
register at PCI offset 2Ch.
7−14