Aaeon All-in-One Super7 Single Board Computer..., User Manual

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Chapter 3 Award BIOS Setup 69
DMA n Assigned to
When resources are controlled manually, assign each system DMA
channel as one of the following types, depending on the type of
device using the interrupt:
Legacy ISA Devices compliant with the original PC AT bus
specification, requiring a specific DMA channel
PCI/ISA PnP Devices compliant with the Plug and Play standard,
whether designed for PCI or ISA bus architecture.
PCI IRQ Activated by
Leave the IRQ trigger set at Level unless the PCI device assigned
to the interrupt specifies Edge-triggered interrupts.