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5. SPECIFICATION
(*1) The video BIOS is not supported, so the relevant area is free (reserved).
(*2) The extended BIOS space is a narrow space between D0000 and DFFFF and may already be in
use by other devices. In addition, the size of the BIOS of standard built-in adapters may
change in future versions. It is advisable that you do not use the extended BIOS space if at all
possible when you design a new device. If you do, a contention may occur between devices
and malfunctions of the devices may result.
5.3 I/O Space
0020－002D
0030－003D
0040－0043
004E－004F
0050－0053
0060、0062、0064、0066
0061
0070－0077
0080
0084-0086
0088
008C-008E
0090
0092
0094-0096
0098-009C-009E
00A0－00B1
00B2－00B3
00B4－00BD
00F0
0000－00FF
0290－029F
02F8－02FF
03F8－03FF
04D0－04D1
0CF8－0CFB
0CF9
0CFC－0CFF
Table 5-11 I/O Space list
I/O address
Interrupt controller
Interrupt controller
System timer
Super I/O
System timer
Keyboard controller
NMI controller
RTC controller
LPC
LPC
LPC
LPC
LPC
Reset controller
LPC
LPC
Interrupt controller
Power management controller
Interrupt controller
Coprocessor
Reserved (Domain except the above)
Super I/O
Serial port 2 (COM2)
Serial port 1 (COM1)
Interrupt controller
PCI configuration (address)
Reset controller
PCI configuration (data)
Device name
configuration
5-8
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