Indumicro IMP-A157, User Manual

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
PCI Latency Timer
Set this value to allow the PCI Latency Timer to be adjusted. This option sets the latency of all
PCI devices on the PCI bus. The default setting is 64.
Option Description
32 This option sets the PCI latency to 32 PCI clock cycles.
64 This option sets the PCI latency to 64 PCI clock cycles. This is the default
setting.
96 This option sets the PCI latency to 96 PCI clock cycles.
128 This option sets the PCI latency to 128 PCI clock cycles.
160 This option sets the PCI latency to 160 PCI clock cycles.
192 This option sets the PCI latency to 192 PCI clock cycles.
224 This option sets the PCI latency to 224 PCI clock cycles.
248 This option sets the PCI latency to 248 PCI clock cycles.

Allocate IRQ to PCI VGA
Set this value to allow or restrict the system from giving the VGA adapter card an interrupt
address. The default setting is Yes.
Option Description
Yes Set this value to allow the allocation of an IRQ to a VGA adapter card that uses
the PCI local bus. This is the default setting.
No Set this value to prevent the allocation of an IRQ to a VGA adapter card that
uses the PCI local bus.

PCI IDE BusMaster
Set this value to allow or prevent the use of PCI IDE busmastering. The default setting is
Disabled.
Option Description
Disabled Set this value to prevent PCI busmastering. This is the default setting.
Enabled This option specifies that the IDE controller on the PCI local bus has mastering
capabilities.
Chapter 3 : BIOS Setup
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IMP-A1x7
User Manual