Manual

64
A. I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port address which also
becomes the identity of the device. There are a total 1K port address space available.
The following table lists the I/O port addresses used on the Industrial CPU Card .
Address Device Description
000h-00Fh DMA Controller
020h-021h INT Controller
040h-043h System Timer
060h-060h Keyboard Controller
061h-061h System Speaker
064h-064h Keyboard Controller
070h-071h System CMOS / Real time clock
081h-083h DMA Controller
087h-087h DMA Controller
089h-08Bh DMA Controller
08Fh-08Fh DMA Controller
0A0h-0A1h INT Controller
0F0h-0FFh Numeric data processor
170h-177h Secondary IDE Channel
1F0h-1F7h Primary IDE Channel
274h-277h ISAPNP Read data Port
279h-279h ISAPNP Read data Port
2E0h-2E7h Serial Port#6 (COM6)
2E8h-2EFh Serial Port#4 (COM4)
2F0h-2F7h Serial Port#5 (COM5)
2F8h-2FFh Serial Port#2 (COM2)
376h-376h Secondary IDE Channel
378h-37Fh Printer Port#1 (LPT1)
3B0h-3DFh VGA Controller
3E8h-3EFh Serial Port#3 (COM3)
3F6h-3F6h Primary IDE Channel
3F8h-3FFh Serial Port#1 (COM1)