Detailed descriptions
16.2 Bus board
SIMATIC Box PC 627
16-18 Operating Instructions, Release 05/2006, A5E00362052-03
16.2.2 Interrupt assignment (PCI-IRQ)
Box PC 627 PCI devices interrupt assignment (PCI-IRQ)
INT – A Graphics, USB A (channel 0+1), USB B (channel 2+ 3)
INT – B Slot 1
INT – C Slot 2
INT – D Serial ATA
INT – E Ethernet 1
INT – F MPI/DP
INT – G Ethernet 2, USB C (channel 4+5), USB D (channel 6 + 7)
INT - H USB 2.0
16.2.3 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.
To enable this, the Ethernet 1, PROFIBUS/MPI interfaces and the two slots each have an
exclusive interrupt.
IRQ assignments for Windows XP
Professional /2000 Professional
operating systems (APIC mode)
IRQ assignments for DOS-based
operating systems (PIC mode)
Ethernet 1 20 10
Profibus/MPI 21 7
Slot 1 17 5
Slot 2 18 3
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