RadiSys EPC-5A, Справочное руководство по аппаратному и программному обеспечению

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Chapter 4: BIOS Configuration
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When using EXMs with configurable interrupts, DMA channels, I/O addresses, and/or
memory addresses, avoid conflicts with built-in functions of the EPC-5A. Guidelines
are:
1. If an interrupt is needed, use IRQ3, IRQ4, IRQ5, IRQ9, or IRQ15. IRQ7
can be used if the printer port is not being used. IRQ3 should not be used
if the COM B port is being used. IRQ4 should not be used if the COM A
port is being used.
2. Use DMA channels 1, 3, 6, and 7.
3. Do not select I/O addresses that conflict with those in the EPC-5A.
A complete list appears in Appendix A. For instance, I/O addresses
in the 300-33F range can be used.
4. If the EXM needs to use upper memory addresses, they must be in the
C8000h-DFFFFh range. Note that E0000h - 0EFFFFh is used for
VMEbus access and is not available.