NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 607

• Manufacturer Part Number: NH82801GHM S L8YR
• Manufacturer: Intel

Specifications of NH82801GHM S L8YR

• Lead Free Status / RoHS Status: Compliant

IDE Controller Registers (D31:F1)
15.1.15
15.1.16
15.1.17
Intel
®
ICH7 Family Datasheet
BM_BASE — Bus Master Base Address Register
(IDE—D31:F1)
Address Offset: 20h
Default Value:
The Bus Master IDE interface function uses Base Address register 5 to request a 16-
byte I/O space to provide a software interface to the Bus Master functions. Only 12
bytes are actually used (6 bytes for primary, 6 bytes for secondary). Only bits [15:4]
are used to decode the address.
IDE_SVID — Subsystem Vendor Identification
(IDE—D31:F1)
Address Offset: 2Ch
Default Value:
Lockable:
IDE_SID — Subsystem Identification Register
(IDE—D31:F1)
Address Offset: 2Eh
Default Value:
Lockable:
31:16
15:4
15:0
15:0
3:1
Bit
Bit
Bit
0
Subsystem ID (SID) — R/WO. The SID register, in combination with the SVID register,
enables the operating system (OS) to distinguish subsystems from each other. Software
(BIOS) sets the value in this register. After that, the value can be read, but subsequent
writes to this register have no effect. The value written to this register will also be
readable via the corresponding SID registers for the USB#1, USB#2, and SMBus
functions.
Reserved
Base Address — R/W. This field provides the base address of the I/O space (16
consecutive I/O locations).
Reserved
Resource Type Indicator (RTE) — RO. Hardwired to 1 indicating a request for I/O space.
Subsystem Vendor ID (SVID) — R/WO. The SVID register, in combination with the
Subsystem ID (SID) register, enables the operating system (OS) to distinguish
subsystems from each other. Software (BIOS) sets the value in this register. After that,
the value can be read, but subsequent writes to this register have no effect. The value
written to this register will also be readable via the corresponding SVID registers for the
USB#1, USB#2, and SMBus functions.
00000001h
00h
No
0000h
No
–
–
–
23h
2Fh
2Dh
Description
Description
Description
Attribute:
Size:
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
R/W, RO
32 bits
R/WO
16 bits
Core
R/WO
16 bits
Core
607