Hardware description
A.5 System resources
SIMATIC IPC847E
192 Operating Instructions, 10/2018, A5E43920357-AA
The functions are assigned different interrupts, depending on the operating system. APIC
mode is used.
The table describes the assignment of the interrupts in the delivery state of the device.
Host PCI-IRQ A to H is assigned to IRQ 16 to 23 permanently in APIC mode.
A specific assignment cannot be forced.
PCI / PCIe cards and the on-board PCI / PCIe devices require PCI interrupt channels. These
interrupt channels can be shared and are plug-and-play compatible. That is, several devices
can share the same interrupt. The IRQ is assigned automatically.
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