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APPENDIX
MBN500 Series User’s Manual
39
Appendix
A. I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port
addresses, which also becomes the identity of the device. The following
table lists the I/O port addresses used.
Address
Device Description
0000h-03AFh
PCI bus
0000h-000Fh
Direct memory access controller
0010h-001Fh
Motherboard resources
0020h-0021h
Programmable interrupt controller
0040h-0043h
System timer
0061h-0061h
System speaker
0070h-0071h
System CMOS/real time clock
0072h-007Fh
Motherboard resources
0081h-0083h
Direct memory access controller
0084h-0086h
Motherboard resources
0087h-0087h
Direct memory access controller
00A0h-00A1h
Programmable interrupt controller
00A2h-00BFh
Motherboard resources
00C0h-000Dh
Direct memory access controller
00F0h-00FFh
Numeric data processor
02F8h-02FFh
Communications Port (COM2)
03B0h-03BBh
PCI Express standard Root Port
03B8h-03DFh
PCI bus
03F8h-03FFh
Communications Port (COM1)
0CD8h-0CDFh
Motherboard resources
F000h-F00Fh
AMD SATA Controller