NH82801FBM S L89K Intel, NH82801FBM S L89K Datasheet - Page 543

• Manufacturer Part Number: NH82801FBM S L89K
• Manufacturer: Intel

Specifications of NH82801FBM S L89K

• Lead Free Status / RoHS Status: Compliant

14.1.29
14.1.30
Intel
®
I/O Controller Hub 6 (ICH6) Family Datasheet
ACCESS_CNTL—Access Control Register
(USB EHCI—D29:F7)
Address Offset:
Default Value:
USB2IR—USB2 Initialization Register
(USB EHCI—D29:F7)
Address Offset:
Default Value:
31:8
Bit
7:1
Bit
4:0
0
7
6
5
Reserved
WRT_RDONLY — R/W. When set to 1, this bit enables a select group of normally read-only
registers in the EHC function to be written by software. Registers that may only be written when this
mode is entered are noted in the summary tables and detailed description as “Read/Write-Special”.
The registers fall into two categories:
Reserved
USB EHCI Initialization Field 2 — R/W.
Mobile: BIOS must clear this bit to 0b.
Desktop: BIOS must set this bit to 1b.
Reserved
USB EHCI Initialization Field 1 — R/W. BIOS must clear this bit to 0b.
Reserved
1. System-configured parameters, and
2. Status bits
80h
00h
FC-FFh
00001706h
Description
Description
Attribute:
Size:
Attribute:
Size:
EHCI Controller Registers (D29:F7)
R/W
8 bits
R/W
32 bits
543