Specifications
BIOS EP-BXBS
Page 4-18
Resources Controlled By: Allows manual setting of resources or automatic by the
PNP BIOS.
The default is Manual.
Manual: PNP Card’s resources will be controlled manually. You can set
which IRQ-X and DMA-X are assigned to PCI/ISA PNP or Legacy ISA
Cards.
Auto: If your ISA card and PCI card are all PNP cards, BIOS will assign
the interrupt resource automatically.
Reset Configuration Data: This setting allows you to clear ESCD data.
The default is Disabled
Disabled: Normal Setting.
Enabled: If you have plugged in some Legacy cards to the system and they
were recorded into ESCD (Extended System Configuration Data), you can
set this field to Enabled in order to clear ESCD.
IRQ-3 to IRQ-15 assigned to: These settings allow IRQ’s to be reserved for
Legacy ISA device use exclusively or be available for use with PNP devices. These
options are only displayed if “Resources Controlled By” is set to manual.
DMA-0 to DMA-7 assigned to: These settings allow DMA’s to be reserved for
Legacy ISA device use exclusively or be available for use with PNP devices. These
options are only displayed if “Resources Controlled By” is set to manual.
Used MEM base addr: The Used MEM base addr (CB00, CC00, D000, D400,
D800, DC00) and Used MEM Length (8K, 16K, 32K, 64K) are used to support
some specific ISA Legacy cards with requested memory space below 1M address.
Now with these two functions, users can define where the used memory address is
located and its length of the legacy area that is used by the legacy device to avoid the
memory space conflict. For example, if you select “D000” for Used MEM base
addr” and “16K” for “Used MEM Length”, that means the address region D000H-
D3FFFH is occupied by ISA legacy cards, and thus BIOS will not assign this region
for PnP/ISA and PCI cards. The default is N/A.
Assign IRQ for USB: This item allows the BIOS to assign an IRQ to the USB
controller. If no USB devices are used in the system this can be set to “disabled” to
free an IRQ for other uses.
The default is Enabled
Disabled: Release IRQ for other device.
Enabled: Provides IRQ for USB device.