Siemens SIMATIC IPC677E - Page 140

Hardware descriptions
A.5 System resources
SIMATIC IPC677E
140 Operating Instructions, 04/2019, A5E45117996-AA
Interrupt assignment of the slot connectors on the bus board
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 automati-
cally 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)