82371FB Datasheet, PDF (24/122 Pages) Intel Corporation – 82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR

82371FB (PIIX) AND 82371SB (PIIX3)
Configuration
Offset
0F–4Bh
4Ch
4Dh
4Eh (PIIX)
4E–4Fh (PIIX3)
4F–5Fh (PIIX)
50–5Fh (PIIX3)
60–63h
64–68h
69h
6A–6Bh
6C–6Fh
70h
71h
72–75h
76–77h
78–79h
7A–7Fh
80h
81h
82h
83–9Fh
A0h
A1h
A2–A3h
A4–A7h
A8h
A9h
AA–ABh
24
Mnemonic
—
IORT
—
XBCS
—
PIRQRC[A:D]
—
TOM
MSTAT
—
MBIRQ0
MBIRQ1
—
—
MBDMA[1:0]
PCSC
—
—
APICBASE
—
—
DLC
—
SMICNTL
—
SMIEN
SEE
FTMR
—
SMIREQ
Register
Reserved
ISA I/O Controller Recovery Timer
Reserved
X-Bus Chip Select Enable
Reserved
PCI IRQ Route Control
Reserved
Top of Memory
Miscellaneous Status
Reserved
Motherboard IRQ Route Control 0
Motherboard IRQ Route Control 1 (PIIX)
Reserved (PIIX3)
Reserved
Motherboard DMA Control
Programmable Chip Select Control
Reserved
Reserved (PIIX)
APIC Base Address Relocation (PIIX3)
Reserved
Reserved (PIIX)
Deterministic Latency Control (PIIX3)
Reserved
SMI Control
Reserved
SMI Enable
System Event Enable
Fast Off Timer
Reserved
SMI Request
E
Register
Access
—
R/W
—
R/W
—
R/W
—
R/W
R/W
—
R/W
R/W
—
—
R/W
R/W
—
—
R/W
—
—
R/W
—
R/W
—
R/W
R/W
R/W
—
R/W