82378ZB Datasheet, PDF (27/137 Pages) Intel Corporation – SYSTEM I/O APIC(SIO.A) AND

E
Configuration
Offset
Register
49h
ISA Address Decoder ROM Block Enable
4Ah
ISA Address Decoder Bottom of Hole
4Bh
ISA Address Decoder Top of Hole
4Ch
ISA Controller Recovery Timer
4Dh
ISA Clock Divisor
4Eh
Utility Bus Chip Select Enable A
4Fh
Utility Bus Chip Select Enable B
50−53h
Reserved
54h
MEMCS# Attribute Register #1
55h
MEMCS# Attribute Register #2
56h
MEMCS# Attribute Register #3
57h
Reserved (82379AB)
57h
S/G Relocation Base Address (82378ZB)
58−5Fh
Reserved
60h
PIRQ0# Route Control
61h
PIRQ1# Route Control
62h
PIRQ2# Route Control
63h
PIRQ3# Route Control
64−6Fh
Reserved
70h
Reserved (82378ZB)
70h
PIC/APIC Configuration Control (82379AB)
71h
Reserved (82378ZB)
71h
APIC Base Address Relocation (82379AB)
72−7Fh
Reserved
80−81h
BIOS Timer Base Address
82−9Fh
Reserved
A0h
SMI Control (SMICNTL)
A1h
Reserved
A2h - A3h
SMI Enable (SMIEN)
A4h - A7h
System Event Enable (SEE)
82378ZB (SIO) AND 82379 (SIO.A)
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
--
--
WO
--
WO
--
R/W
--
R/W
--
R/W
R/W
Bus Access
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
PCI Only
27