BECKHOFF CB4055 - Manual (Page 84)

Annex: Resources
page 84 Beckhoff New Automation Technology CB4055
II Annex: Resources
IO Range
The used resources depend on setup settings.
The given values are ranges, which are fixed by AT compatibility. Other IO ranges are used, which are
dynamically adjusted by Plug & Play BIOS while booting.
Address Function
0-FF Reserved IO area of the board
170-17F
1F0-1F7
278-27F
2E8-2EF
2F8-2FF COM2
370-377
378-37F
3BC-3BF
3E8-3EF
3F0-3F7
3F8-3FF COM1
Memory Range
The used resources depend on setup settings.
If the entire range is clogged through option ROMs, these functions do not work anymore.
Address Function
A0000-BFFFF VGA RAM
C0000-CFFFF VGA BIOS
D0000-E7FFF AHCI BIOS / RAID / PXE (if available)
E8000-FFFFF System BIOS
Interrupt
The used resources depend on setup settings.
The listed interrupts and their use are given through AT compatibility.
If interrupts must exclusively be available on the ISA side, they have to be reserved through the BIOS
setup. The exclusivity is not given and not possible on the PCI side.
Address Function
IRQ0 Timer
IRQ1 PS/2 Keyboard
IRQ2 (9)
IRQ3 COM1
IRQ4 COM2
IRQ5
IRQ6
IRQ7
IRQ8 RTC
IRQ9
IRQ10
IRQ11
IRQ12 PS/2 Mouse