NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 454

• Manufacturer Part Number: NH82801HEM S LB9B
• Manufacturer: Intel

Specifications of NH82801HEM S LB9B

• Lead Free Status / RoHS Status: Compliant

11.1.15
11.1.16
11.1.17
454
BM_BASE — Bus Master Base Address Register
(IDE—D31:F1)
Address Offset:
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:
Default Value:
Lockable:
IDE_SID — Subsystem Identification Register
(IDE—D31:F1)
Address Offset:
Default Value:
Lockable:
31:16
15:0
15:4
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.
20h
00000001h
2Ch
00h
No
2Eh
0000h
No
–
–
–
23h
2Fh
2Dh
Description
Description
Description
Attribute:
Size:
Attribute:
Size:
Power Well: Core
Attribute:
Size:
Power Well: Core
IDE Controller Registers (D31:F1) (Mobile Only)
R/W, RO
32 bits
16 bits
16 bits
R/WO
R/WO
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®
ICH8 Family Datasheet