User manual
POD-6552 A2 User Manual 78
D.1 System I/O Ports
Table D.1: System I/O Ports
Addr. Range (Hex) Device
00®C0F Master DMA Controller
20®C21F Master Interrupt Controller
2E®C2F Configuration Index/Data
40®C5F Timer/Counter
60®C6F Keyboard Controller
60h KBC Data
61h Misc Funtions & Spkr Ctrl
64h KBC Command/Status
70-77 RTC/COMS/NMI-Disable
78-7F -available for system use-
80 -reserved-(debug port)
81-8F DMA Page Registers
90-91 -available for system use-
92 System Control
93-9F -available for system use-
A0-A1H Slave Interrupt Controller
C0-DF Slave DMA Controller
E0-FF -available for system use-
100-1EF -available for system use-
170-178 Secondary IDE Control
1F0-1F8 Primary IDE Control
200-20F Game Port
2E8-2EF COM4
2E0-2E7 COM2
378-37F Parallel Port(standard & AFF)
3C0-3CF EGA
3D0-2DF VGA
3E8-3EF COM3
3F0-2F7 Floppy Controller
3F8-3FF COM1
778-77A Parallel Port(ECP Extensions)(Port 378+400)
870-871 Hardware Monitor
800h-87Fh Super IO runtime register
CF8-CFB PCI Configuration Address
CFC-CFF PCI Configuration Data
D00-FFFF -available for system use-