Siemens Simatic PC Panel PC 870, Equipment Manual

Page: 72 / 154

Configuring the Computing Unit in BIOS Setup Release 11/02
5-16
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Option ROM Scan [Enabled] The option ROM of the PCI module (if present) is
enabled
[Disabled] The option ROM of a PCI module is disabled.
Enable Master: [Enabled] This slot can assume the PCI master function
[Disabled] This slot can only operate as a PCI slave.
Latency Timer: [Default] The number of active PCI clock cycles of the
master modules are determined by the module
[0020H With these settings, the maximum active PCI clock
to is set to the selected values.
00E0H]
“PCI/PNP ISA IRQ Resource Exclusion” submenu
”Available” means that the BIOS Plug and Plug device can assign IRQs to Plug
and Play compatible modules or main board functions.
”Reserved” should only be set when the interrupt in question must be assigned to
non-Plug and Play capable modules.
PhoenixBIOS Setup Utility.
Item Specific Help
ESC Exit
Select Item
Select Menu
+ / –
Enter Select
Change Values F9
F10
Setup Defaults
Save and Exit Sub-Menu
IRQ 3:
IRQ 4:
IRQ 5:
IRQ 9:
IRQ 10:
IRQ 11:
IRQ 12: [Available]
[Available]
[Available]
[Available]
[Available]
[Reserved]
[Available]
PCI / PNP ISA IRQ Resource Exclusion
Reserves the specified
IRQ for use by legacy
ISA devices
F1 Help
Advanced
Figure 5-12 ”PCI / PNP ISA IRQ Resource Exclusion” submenu