I/O Port Address Map - ROHS EmCORE-i2702 User Manual

Appendix

4.1 I/O Port Address Map

Each peripheral device in the system is assigned a set of I/O port addresses
which also becomes the identity of the device.
The following table lists the I/O port addresses used.
Item Address
0000h-000Fh
1 0080h-009Fh
00C0h-00DFh
0020h, 0021h
2
00A0h, 00A1h
000h-00h

00h-007h
 0060h-006h
 0070h-007h
6 00F0h-00FFh
7 01F0h-01F7h
8 027h-0277h
9 0279h, 0A79h
10 02E0h-02E7h
11 02E8h-02EFh
12 02F8h-02FFh
1 078h-07Ah
1 0B0h-0BFh
1 0C0h-0CFh
16 0Dh-0D9h
17 0E0h-0E7h
18 0E8h-0EFh
19 0F0h-0F7h
20 0F6h-0F6h
21 0F8h-0FFh
22 000h-01Fh
2 0D0h-0D1h
Device Description
Direct memory access controller
Programmable interrupt Controller
System timer
Keyboard controller
System CMOS/real time clock
Math Co-Processor
Primary IDE
ISAPNP Read Data Port
ISAPnP Configuration
COM_6 (If use)
COM_ (If use)
COM_2 (If use)
Parallel Port (If use)
MDA/MGA
EGA/VGA
CGA CRT 暂存器
COM_ (If use)
COM_ (If use)
Floppy Diskette
Primary IDE
COM_1 (If use)
South Bridge SMB
IRQ Edge/level control ports
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