Host Controller Data Manual

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

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.