System I/O Ports; C.1 System I/O Ports - Advantech PCA-6781 User Manual

C.1

System I/O Ports

Table C.1: System I/O Ports
Addr. range (Hex)
00-0F
20-21F
40-5F
60-6F
(60h)
(61h)
(64h)
70-77
78-7F
80
81-8F
90-91
92
93-9F
A0-A1H
C0-DF
E0-FF
100-CF7
CF8-CFB
CFC-CFF
D00-FFFF
200-20F
2F8-2FF
378-37F
3F0-3F1
3F0-3F7
3F8-3FF
778-77A
800h~87fh Super I/O runtime reg
PCA-6781 User Manual
Device
Master DMA controller
Master Interrupt controller
Timer/Counter
Keyboard controller
KBC Data
Misc Functions & Spkr Ctrl
KBC Command/Status
RTC/COMS/NMI-Disable
-available for system use-
-reserved-(debug port)
DMA Page Registers
-available for system use-
System Control
-available for system use-
Slave Interrupt Controller
Slave DMA Controller
-available for system use-
-available for system use-
PCI Configuration Address
PCI Configuration Data
-available for system use-
Game Port
COM2
Printer Port (Standard & AFF)
Configuration Index/Data
Floppy Controller
COM1
Printer Port (ECP Extensions) (Port 378+400)
54