16 capability id and next item pointer register – Texas Instruments TSB12LV26 User Manual
Page 31
3–11
3.16 Capability ID and Next Item Pointer Register
The capability ID and next item pointer register identifies the linked list capability item and provides a pointer to the
next capability item. See Table 3–13 for a complete description of the register contents.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Capability ID and next item pointer
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
0
0
0
0
0
0
1
Register:
Capability ID and next item pointer
Type:
Read-only
Offset:
44h
Default:
0001h
Table 3–13. Capability ID and Next Item Pointer Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
15–8
NEXT_ITEM
R
Next item pointer. The TSB12LV26 supports only one additional capability that is communicated to
the system through the extended capabilities list; thus, this field returns 00h when read.
7–0
CAPABILITY_ID
R
Capability identification. This field returns 01h when read, which is the unique ID assigned by the PCI
SIG for PCI power management capability.