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Appendix
MPT-3000R / RHV Series User Manual 69
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
070h
– 07Fh
Real Time Clock
2E0h
– 2E7h
Serial Port #6 (COM6)
* COM6 sigals come from the on-board connector J11,
and is reserved for future use to connect to CAN
module.
2E8h
– 2EFh
Serial Port #4 (COM4)
2F0h
– 2F7h
Serial Port #3 (COM3)
2F8h
– 2FFh
Serial Port #2 (COM2)
3B0h
– 3DFh
Intel(R) HD Graphics
3E8h
– 3EFh
Serial Port #5 (COM5)
* COM5 is for internal use only.
3F8h
– 3FFh
Serial Port #1 (COM1)
0000
– FFFF
PCI-e Root Complex
B. Interrupt Request Lines (IRQ)
Peripheral devices use interrupt request lines to notify CPU for the service
required. The following table shows the IRQ used by the devices on board.
Level Function
IRQ0 System Timer
IRQ3 Serial Port #2
IRQ4 Serial Port #1
IRQ6 Serial Port #5
IRQ7 Serial Port #4
IRQ8 High precision event timer
IRQ10 Serial Port #3
IRQ11 Serial Port #6
IRQ22 High Definition Audio Controller