
User’s Manual
WIN Enterprises, Inc.
September, 2012
40
Appendix A: System Resources
Interrupt Controller:
The MB-63020 is a fully PC compatible appliance. If you would like to use
extra add-on cards, please make sure that the IRQs do not conflict.
Any remaining IRQs then may be assigned to this PCI Bus. You are able to
use Microsoft’s Diagnostic (MDS.EXE) utility included in Windows directory to
see their map.
IRQ
Assignment
IRQ0
ISA/Timer
IRQ1
ISA/Keyboard
IRQ2
ISA/Interrupt re-routing from IRQ8 ~ IRQ15
IRQ3
ISA/COM2
IRQ4
ISA/COM1
IRQ5
ISA/Free
IRQ6
ISA/FDD Controller
IRQ7
PCI/PCI-PCI Bridge
IRQ8
ISA/RTC
IRQ9
ISA/Free
IRQ10
PCI/IDE Controller
IRQ11
PCI/VGA Adapter
IRQ12
ISA/Mouse
IRQ13
ISA/Coprocessor
IRQ14
ISA/IDE Controller
IRQ15
ISA/IDE Controller
DMA Channel Assignment:
Channel 4 is by default used to cascade to two controllers
Channel
Assignment
DMA0
ISA/Free
DMA1
ISA/Free
DMA2
ISA/FDD Controller
DMA3
ISA/Free
DMA4
ISA/Cascade
DMA5
ISA/Free
DMA6
ISA/Free
DMA7
ISA/Free