SB82371 Intel Corporation, SB82371 Datasheet - Page 57

• Manufacturer Part Number: SB82371
• Description: 82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR
• Manufacturer: Intel Corporation

2.4.8.
Address Offset:
Default Value:
Attribute:
This register identifies the Serial Bus module as a single function device.
2.4.9.
Address Offset:
Default Value:
Attribute:
This register contains the base address of the USB I/O Registers.
2.4.10.
Address Offset:
Default Value:
Attribute:
Software programs this register with interrupt information concerning the Universal Serial Bus.
7:0
31:16
15:5
4:1
0
7:0
Bit
Bit
Bit
HEDT HEADER TYPE REGISTER (Function 2) (PIIX3)
BASEADD
IL Interrupt Line Register (Function 2) (PIIX3)
Interrupt Line. . The value in this register has no affect on PIIX3 hardware operations.
Device Type (DEVICET). 00. Multi-function device capability for PIIX/PIIX3 is defined by the
HEDT register in Function 0.
Reserved. Hardwired to 0s. Must be written as 0s.
Index Register Base Address. Bits [15:5] correspond to I/O address signals AD [15:5],
respectively.
Reserved. Read as 0.
Resource Type Indicator (RTE)—RO. This bit is hardwired to 1 indicating that the base
address field in this register maps to I/O space.
0Eh
00h
Read Only
20 23h
00h
Read/Write
3Ch
00h
Read/Write
I/O SPACE BASE ADDRESS (Function 2) (PIIX3)
Description
Description
Description
82371FB (PIIX) AND 82371SB (PIIX3)
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