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Detailed descriptions
16.3 System resources
SIMATIC Box PC 627B
176
Operating Instructions, 06/2008, A5E00927393-02
16.3.2.3
Exclusive PCI hardware interrupt
Applications demanding a high-performance interrupt require a high-speed hardware
interrupt reaction. The PCI hardware interrupt should be used only by one resource in order
to ensure high-speed reaction of the hardware.
Exclusive interrupt in APIC mode
IRQ assignments for Windows XP Professional, Windows XP Embedded and
Windows 2000 Professional (APIC mode)
Ethernet 1
16
1) 2)
Ethernet 2
17
1)
Profibus/MPI
19
1)
PCI slot 1
20
1)
PCI slot 2
21
1)
PCI Express slot
16
1) 3)
1)
Requirement: The modules in the PCI slots each require only one interrupt
2)
Requirement: VGA and PCI Express do not require an interrupt
3)
Requirement: VGA does not require an interrupt and Ethernet1 is disabled
Exclusive interrupt in PIC mode
The interrupts are automatically assigned to the slots at system startup due to the default
settings in system BIOS.
Several slots may share the same interrupt, depending on the system configuration. This
functionality is known as interrupt sharing. Exclusive interrupts are not available in PIC
mode. Disable specific system resources in order to obtain exclusive interrupts. BIOS
assigns the PIC interrupts at random during restart of the system.
Summary of Contents for SIMATIC 627B
Page 10: ...Table of contents SIMATIC Box PC 627B 8 Operating Instructions 06 2008 A5E00927393 02 ...
Page 30: ...Description 3 7 Design SIMATIC Box PC 627B 28 Operating Instructions 06 2008 A5E00927393 02 ...
Page 244: ...SIMATIC Industrial PC SIMATIC Box PC 627B Operating Instructions 06 2008 A5E00927393 02 242 ...