Interrupt Assignments - Siemens SIMATIC HMI IPC677C Operating Instructions Manual

Detailed descriptions
16.3 System resources
16.3.2.2

Interrupt Assignments

The functions are assigned different interrupts, depending on the operating system. A
distinction is made between the PIC and APIC modes.
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
1)
automatically assigned IRQ 0 to 15 in PIC mode. A specific assignment can not be enforced.
Interrupt in PIC and APIC mode
X
Interrupt in APIC mode
Y
BIOS Default Interrupt in PIC mode (e.g. DOS)
Z
Figure 16-3 Interrupt assignment in PIC mode
218
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04