82801FB Datasheet, PDF (241/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Register and Memory Mapping
Table 6-2. Fixed I/O Ranges Decoded by Intel^® ICH6 (Sheet 2 of 2)
I/O Address
Read Target
Write Target
Internal Unit
88h
89h–8Bh
8Ch–8Eh
08Fh
90h–91h
92h
93h–9Fh
A0h–A1h
A4h–A5h
A8h–A9h
ACh–ADh
B0h–B1h
B2h–B3h
B4h–B5h
B8h–B9h
BCh–BDh
C0h–D1h
D2h–DDh
DEh–DFh
F0h
DMA Controller
DMA Controller
DMA Controller
DMA Controller
DMA Controller
Reset Generator
DMA Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Power Management
Interrupt Controller
Interrupt Controller
Interrupt Controller
DMA Controller
RESERVED
DMA Controller
PCI and Master Abort¹
170h–177h
1F0h–1F7h
376h
3F6h
4D0h–4D1h
CF9h
IDE Controller, SATA Controller,
or PCI
IDE Controller, SATA Controller,
or PCI ²
IDE Controller, SATA Controller,
or PCI
IDE Controller, SATA Controller,
or PCI ²
Interrupt Controller
Reset Generator
DMA Controller and LPC or PCI
DMA Controller
DMA Controller and LPC or PCI
DMA Controller
DMA Controller
Reset Generator
DMA Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Power Management
Interrupt Controller
Interrupt Controller
Interrupt Controller
DMA Controller
DMA Controller
DMA Controller
FERR#/IGNNE# / Interrupt
Controller
IDE Controller, SATA Controller,
or PCI
IDE Controller, SATA Controller,
or PCI
IDE Controller, SATA Controller,
or PCI
IDE Controller, SATA Controller,
or PCI
Interrupt Controller
Reset Generator
DMA
DMA
DMA
DMA
DMA
Processor I/F
DMA
Interrupt
Interrupt
Interrupt
Interrupt
Interrupt
Power Management
Interrupt
Interrupt
Interrupt
DMA
DMA
DMA
Processor I/F
Forwarded to IDE or
SATA
Forwarded to IDE or
SATA
Forwarded to IDE or
SATA
Forwarded IDE or
SATA
Interrupt
Processor I/F
NOTES:
1. A read to this address will subtractively go to PCI, where it will master abort.
2. Only if IDE I/O space is enabled (D31:F1:40 bit 15) and the IDE controller is in legacy mode. Otherwise, the
target is PCI.
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
241