82801FB Datasheet, PDF (537/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

EHCI Controller Registers (D29:F7)
14.1.21
NXT_PTR2—Next Item Pointer #2 Register
(USB EHCI—D29:F7)
Address Offset: 59h
Default Value: 00h
Attribute: RO
Size:
8 bits
Bit
Description
7:0
Next Item Pointer 2 Capability — RO. Hardwired to 00h to indicate there are no more capability
structures in this function.
14.1.22 DEBUG_BASE—Debug Port Base Offset Register
(USB EHCI—D29:F7)
Address Offset: 5Ah–5Bh
Default Value: 20A0h
Attribute: RO
Size:
16 bits
Bit
Description
15:13
12:0
BAR Number — RO. Hardwired to 001b to indicate the memory BAR begins at offset 10h in the
EHCI configuration space.
Debug Port Offset — RO. Hardwired to 0A0h to indicate that the Debug Port registers begin at
offset A0h in the EHCI memory range.
14.1.23
USB_RELNUM—USB Release Number Register
(USB EHCI—D29:F7)
Address Offset: 60h
Default Value: 20h
Attribute: RO
Size:
8 bits
Bit
Description
7:0
USB Release Number — RO. A value of 20h indicates that this controller follows Universal Serial
Bus (USB) Specification, Revision 2.0.
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
537