Siemens SIMATIC PC RI25/45 Technical Description page 67

VGA Interrupt
Memory Gap at 15 Mbytes
PCI Devices
When you call up the menu option PCI Devices in the Advanced menu, the
following submenu appears:
Figure 2-22 Submenu "PCI Devices"
Settings
PCI Device, Slot#1/Slot#2
Enable Master:
Default Latency
Timer
Latency Timer
PCI IRQ Line
1, 2, 3, 4
SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
PhoenixBIOS Setup-Copyright 1985-95 Phoenix Technologies Ltd.
Main Advanced Security
PCI Devices
PCI Device, Slot #1:
Enable Master: [Enabled]
Default Latency Timer: [Yes]
Latency Timer: [0040]
PCI Device, Slot #2:
Enable Master: [Enabled]
Default Latency Timer: [Yes]
Latency Timer: [0040]
PCI IRQ line 1: [AutoSelect]
PCI IRQ line 2: [AutoSelect]
PCI IRQ line 3: [AutoSelect]
PCI IRQ line 4: [AutoSelect]
F1 Help Select Item + / –
ESC Exit Select Menu Enter Select
[Enable] PCI master mode is not permissible for this slot.
[Disable] Master mode is not permissible for this slot.
[Yes] PCI master module determines the number of active
PCI clock cycles.
[No] The preset latency timer value defines the number of
active PCI clock cycles.
[0040] Number of active PCI clock cycles.
[AutoSelect]
[3, 4, 5, 9, 10, 11] The respective PCI interrupt line is
[12, 14, 15]
[Disabled]
[Enabled] IRQ 9 is reserved for the VGA card
[Disabled] IRQ 9 is reserved for other devices
[Disabled] The onboard RAM is fully
available.
[Enabled] A 1 Mbyte area of the main
memory address area (from 15
Mbyte, address F0 0000 – FF
FFFF) can be assigned to ISA
expansion modules.
Power Exit
Item Specific Help
Enable selected device as
a PCI bus master.
Change Values F9 Setup Defaults
Sub-Menu F10 Previous Values
Plug & Play defines the interrupt used.
permanently assigned to the ISA interrupt
[3, 4, 5, 9, 10, 11, 12, 14, 15]
Interrupts [5, 9, 10, 11, 12, 15] are available to
the ISA bus.
Motherboard
2-45