Appendix B Technical Summary
Page: B-6
BPC-8590USER
′
S MANUAL
I/O & MEMORY MAP
Fixed I/O Ranges Decoded by ICH2 :
I/O Address
Read Target
Write Target
Internal Unit
00h-08h
DMA Controller
DMA Controller
DMA
09h-0Eh Reserved
DMA
Controller
DMA
0Fh
DMA Controller
DMA Controller
DMA
10h-18h
DMA Controller
DMA Controller
DMA
19h-1Eh Reserved
DMA
Controller
DMA
1Fh
DMA Controller
DMA Controller
DMA
20h-21h
Interrupt Controller
Interrupt Controller
Interrupt
24h-25h
Interrupt Controller
Interrupt Controller
Interrupt
28h-29h
Interrupt Controller
Interrupt Controller
Interrupt
2Ch-2Dh
Interrupt Controller
Interrupt Controller
Interrupt
2Eh-2Fh
LPC SIO
LPC SIO
Forwarder to LPC
30h-31h
Interrupt Controller
Interrupt Controller
Interrupt
34h-35h
Interrupt Controller
Interrupt Controller
Interrupt
38h-39h
Interrupt Controller
Interrupt Controller
Interrupt
3Ch-3Dh
Interrupt Controller
Interrupt Controller
Interrupt
40h-42h Timer/Counter
Timer/Counter
PIT
(8254)
43h Reserved
Timer/Counter
PIT
4E-4F
LPC SIO
LPC SIO
Forwarder to LPC
50h-52h Timer/Counter
Timer/Counter
PIT
53h Reserved
Timer/Counter
PIT
60h
Microcontroller
Microcontroller
Forwarder to LPC
61h
NMI Controller
NMI Controller
Processor I/F
62h
Microcontroller
Microcontroller
Forwarder to LPC
63h
NMI Controller
NMI Controller
Processor I/F
64h
Microcontroller
Microcontroller
Forwarder to LPC
65h
NMI Controller
NMI Controller
Processor I/F
66h
Microcontroller
Microcontroller
Forwarder to LPC
67h
NMI Controller
NMI Controller
Processor I/F
70h Reserved
5
NMI & RTC controller RTC
71h
RTC Controller
RTC Controller
RTC
72h
RTC Controller
NMI & RTC controller RTC
73h
RTC Controller
RTC Controller
RTC
74h
RTC Controller
NMI & RTC controller RTC
75h
RTC Controller
RTC Controller
RTC
76h
RTC Controller
NMI & RTC controller RTC
77h
RTC Controller
RTC Controller
RTC