Register and Memory Mapping
Table 9-2.
Fixed I/O Ranges Decoded by Intel® ICH10 (Sheet 1 of 2)
I/O
Address
Read Target
Write Target
Internal Unit
00h–08h
09h–0Eh
0Fh
DMA Controller
RESERVED
DMA Controller
DMA Controller
DMA
DMA
DMA Controller
DMA Controller
RESERVED
DMA Controller
DMA
10h–18h
19h–1Eh
1Fh
DMA Controller
DMA
DMA Controller
DMA
DMA Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
LPC SIO
DMA Controller
DMA
20h–21h
24h–25h
28h–29h
2Ch–2Dh
2E–2F
30h–31h
34h–35h
38h–39h
3Ch–3Dh
40h–42h
43h
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
LPC SIO
Interrupt
Interrupt
Interrupt
Interrupt
Forwarded to LPC
Interrupt
Interrupt
Interrupt
Interrupt
PIT (8254)
PIT
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Timer/Counter
RESERVED
Interrupt Controller
Interrupt Controller
Interrupt Controller
Interrupt Controller
Timer/Counter
Timer/Counter
4E–4F
50h–52h
53h
LPC SIO
LPC SIO
Forwarded to LPC
PIT
Timer/Counter
RESERVED
Timer/Counter
Timer/Counter
PIT
60h
Microcontroller
NMI Controller
Microcontroller
Microcontroller
Microcontroller
RESERVED
Microcontroller
Forwarded to LPC
Processor I/F
Forwarded to LPC
Forwarded to LPC
Forwarded to LPC
RTC
61h
NMI Controller
62h
Microcontroller
64h
Microcontroller
66h
Microcontroller
70h
NMI and RTC Controller
RTC Controller
71h
RTC Controller
RTC Controller
RTC Controller
RTC Controller
RTC Controller
RTC Controller
RTC Controller
RTC
72h
NMI and RTC Controller
RTC Controller
RTC
73h
RTC
74h
NMI and RTC Controller
RTC Controller
RTC
75h
RTC
76h
NMI and RTC Controller
RTC Controller
RTC
77h
RTC
DMA Controller, or LPC, or
PCI
DMA Controller and LPC or
PCI
80h
DMA
DMA
81h–83h
DMA Controller
DMA Controller
296
Datasheet
INTEL [ INTEL ]
