POD-6552 A2 User Manual 78D.1 System I/O PortsTable D.1: System I/O PortsAddr. Range (Hex) Device00®C0F Master DMA Controller20®C21F Master Interrupt Controller2E®C2F Configuration Index/Data40®C5F Timer/Counter60®C6F Keyboard Controller60h KBC Data61h Misc Funtions & Spkr Ctrl64h KBC Command/Status70-77 RTC/COMS/NMI-Disable78-7F -available for system use-80 -reserved-(debug port)81-8F DMA Page Registers90-91 -available for system use-92 System Control93-9F -available for system use-A0-A1H Slave Interrupt ControllerC0-DF Slave DMA ControllerE0-FF -available for system use-100-1EF -available for system use-170-178 Secondary IDE Control1F0-1F8 Primary IDE Control200-20F Game Port2E8-2EF COM42E0-2E7 COM2378-37F Parallel Port(standard & AFF)3C0-3CF EGA3D0-2DF VGA3E8-3EF COM33F0-2F7 Floppy Controller3F8-3FF COM1778-77A Parallel Port(ECP Extensions)(Port 378+400)870-871 Hardware Monitor800h-87Fh Super IO runtime registerCF8-CFB PCI Configuration AddressCFC-CFF PCI Configuration DataD00-FFFF -available for system use-