PCI7621 Datasheet, PDF (265/298 Pages) Texas Instruments – DUAL SINGLE SOCKET CARDBUS AND ILTRAMEDIA CONTROLLER WITH INTEGRATED 1304-A - CONTROLLER WITH DEDICATED FLASH MEDIA SOCKET

12.17 Capability ID and Next Item Pointer Registers
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 12−12 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
BIT
15−8
7−0
Register:
Offset:
Type:
Default:
Capability ID and next item pointer
80h
Read-only
0001h
Table 12−12. Capability ID and Next Item Pointer Registers Description
FIELD NAME
NEXT_ITEM
CAPABILITY_ID
TYPE
R
R
DESCRIPTION
Next item pointer. The SD host controller supports only one additional capability, PCI power
management, that is communicated to the system through the extended capabilities list; therefore,
this field returns 00h when read.
Capability identification. This field returns 01h when read, which is the unique ID assigned by the PCI
SIG for PCI power-management capability.
12−11