System I/O Ports - Advantech PCA-6773 Series User Manual

Appendix D System Assignments
D.1 System I/O Ports
Table D.1: System I/O ports
Addr. range (Hex)
00-1F
20-3F
40-5F
60-6F
(60h)
(61h)
(64h)
70-77
78-7F
80
81-8F
90-91
92
93-9F
A0-BF
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
MPU-401 select from 300 ~ 330H (2 bytes)
PCA-6773 User's Manual
Device
Master DMA controller
Master Interrupt controller
Timer/Counter
Keyboard controller
KBC Data
Misc Funtions & 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
Parallel Port(Standard & AFF)
Configuration Index/Data
Floppy Controller
COM1
Parallel Port(ECP Extensions)(Port 378+400)
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