SBC86840 Series All-In-One Mini ITX Board User’s Manual
Hardware Description
42
3.4 I/O Port Address Map
The Intel
®
Core
TM
2 Duo and Celeron
®
M CPUs can communicate via
I/O ports. There are total 1KB port addresses available for assignment
to other devices via I/O expansion cards.
Address
Devices
000-00F DMA
controller
020-021
Programmable interrupt controller
02E-02F
Super I/O 1
040-043 System
timer
04E-4F
Super I/O 2
060,064 Keyboard
controller
061 System
speaker
070-073
System CMOS/Real time clock
080-090 DMA
controller
094-09F DMA
controller
0A0-0A1
Programmable interrupt controller
0C0-0DF DMA
controller
0F0-0FF
Numeric data processor
170-177
Secondary IDE Channel
1F0-1F7
Primary IDE Channel
274-277
ISAPNP Read Data Port
279
ISAPNP Read Data Port
2E8-2EF
Communications Port (COM4)
2F8-2FF
Communications Port (COM2)
376
Secondary IDE Channel
378-37F
Printer Port (LPT1)
3B0-3BB
Mobile Intel® 965 Express Chipset Family
3C0-3DF
Mobile Intel® 965 Express Chipset Family
3E8-3EF
Communications Port (COM3)
3F0-3F5
Standard floppy disk controller
3F6
Primary IDE Channel
3F7
Standard floppy disk controller
3F8-3FF
Communications Port (COM1)
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