Operating instructions

Detailed descriptions
16.3 System resources
SIMATIC IPC627C
Operating Instructions, 11/2010, A5E02669068-02
151
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1)
Host PCI-IRQ A to H will be assigned IRQ 16 to 23 permanently in ACPI mode. Host PCI-IRQ A to H will be
automatically assigned IRQ 0 to 15 in PIC mode. A specific assignment can not be enforced.
Y
Interrupt in APIC mode
Z
BIOS Default Interrupt in PIC mode (e.g. DOS)
Figure 16-4 Interrupt assignment of the slot connectors on the bus board
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 systems, (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