DIGITAL-LOGIC AG PCCP5 Manual V2.3
145
PCI Latency Timer (PCI
Clocks)
This option specifies the latency timings (in PCI clocks) for all PCI devices
on the PCI bus. The settings are 32, 64, 128, 160, 192, 224 or 248.
PCI IDE Busmaster Set this option to Enabled to specifiy that the IDE controller on the PCI
local bus includes a bus mastering capability. The settings are Enabled or
Disabled.
DMA Channel 0 - 7 These options specify if the named DMA channel is available for use on
the ISA/EISA bus or for PnP (Plug and Play). The settings are ISA/EISA
or PnP.
IRQ3, 4, 5, 7, 9, 10, 11, 14, 15 These options specifiy the bus that the specified IRQ line is used on.
These options allow you to reserve IRQs for legacy ISA adapter cards.
These options determine if AMIBIOS should remove an IRQ from the pool
of available IRQs passed to devices that are configurable by reading the
ESCD NVRAM. If more IRQs must be removed from the pool, the end
user can use these options to reserve the IRQ by assigning an ISA/EISA
settings to it. Onboard I/O are configured as PCI/PnP. IRQ14 and 15 will
not be available if the onboard PCI DIE is enabled. If all IRQs are set to
ISA/EISA and IRQ14 and 15 are allocated to the onboard PCI IDE, IRQ9
will still be available for PCI and PnP devices, because at least one IRQ
must be available for PCI and PnP devices. The settings are ISA/EISA or
PCI/PnP.
Reserved Memory Size This option specifies the size of the memory area reserved for legacy ISA
adapter cards. The settings are Disabled, 16K, 32K or 64K.
Reserved Memory Address This option specifies the beginning address (in hex) of the reserved mem-
ory area. The specified ROM memory area is reserved for use by legacy
ISA adapter cards. The settings are C000, C4000, C8000, CC000, D0000,
D4000, D8000 or DC000.
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