Intel ECB-870 User Manual
Page 102
User’s Manual
90 ECB-870 User’s Manual
I/O Port
Description
Note
0000h-000Fh
Direct memory access controller
0081h-0083h
Direct memory access controller
0087h-0087h
Direct memory access controller
0089h-008Bh
Direct memory access controller
008Fh-0091h
Direct memory access controller
00C0h-00DFh
Direct memory access controller
0060h-0060h
PC/AT Enhanced PS/2 Keyboard (101/102-Key)
0064h-0064h
PC/AT Enhanced PS/2 Keyboard (101/102-Key)
0378h-037Fh
Printer Port (LPT1)
0778h-077Bh
Printer Port (LPT1)
03F8h-03FFh
Communications Port (COM1)
02F8h-02FFh
Communications Port (COM2)
03F0h-03F5h
Standard floppy disk controller
03F7h-03F7h
Standard floppy disk controller
0061h-0061h System
speaker
0070h-0071h
System CMOS/real time clock
00F0h-00FFh
Numeric data processor