IBASE Technology IB895 - Appendix; I;O Port Address Map

APPENDIX
44 IB895 User’s Manual
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
0000-001F Direct memory access controller
0000-001F PCI bus
0020-0021 Programmable interrupt controller
0024-0025 Programmable interrupt controller
0028-0029 Programmable interrupt controller
002C-002D Programmable interrupt controller
0030-0031 Programmable interrupt controller
0034-0035 Programmable interrupt controller
0038-0039 Programmable interrupt controller
003C-003D Programmable interrupt controller
0040-0043 System timer
0050-0053 System timer
0060-0060 Standard PS/2 Keyboard
0064-0064 Standard PS/2 Keyboard
0070-0077 System CMOS/real time clock
0081-0091 Direct memory access controller
0093-009F Direct memory access controller
00A0-00A1 Programmable interrupt controller
00A4-00A5 Programmable interrupt controller
00A8-00A9 Programmable interrupt controller
00AC-00AD Programmable interrupt controller
00B0-00B1 Programmable interrupt controller
00B4-00B5 Programmable interrupt controller
00B8-00B9 Programmable interrupt controller
00BC-00BD Programmable interrupt controller
00C0-00DF Direct memory access controller
00F0-00F0 Numeric data processor
02E8-02EF Communications Port (COM4)
02F8-02FF Communications Port (COM2)