System Resources; Currently Allocated System Resources; Assignment Of System Resources - Siemens SIMATIC IPC477D Operating Instructions Manual

8.5.3

System resources

8.5.3.1

Currently allocated system resources

All system resources (hardware addresses, memory configuration, allocation of interrupts,
DMA channels) are assigned dynamically by the Windows OS, depending on the hardware
configuration, drivers and connected external devices. You can view the current
configuration of system resources or possible conflicts with the following operating systems:
Windows Embedded Standard and
Windows 7 Ultimate
8.5.3.2

Assignment of system resources

The following tables and images describe the system resources for the delivery state of the
device.
PCIe interrupt lines
The interrupts are assigned to devices by BIOS. There are exclusive non-shared interrupts
for DP12 and the first Ethernet interface.
This means that applications or realtime operating system expansions can operate these
devices exclusively and with high-performance without having to share the interrupt with
other devices.
Interrupt sharing in APIC mode:
Interrupt
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 11/2016, A5E31347228-AF
Start menu "Start": Enter "msinfo32" in the search field and
press "Return" to confirm.
HPET (High Precision Event Timer), when HPET is
enabled in the BIOS "Advanced" menu.
System Timer, when HPET is disabled.
Free
Interrupt controller 2
Com Port 2 (COM2)
Com Port 1 (COM1)
CAN (optional)
Free
Free
System CMOS / real-time clock
ACPI-SCI (system control interrupt)
Free
Free
Free
Numeric data processor
Free
Free
Technical information
8.5 Hardware descriptions
Interrupt type
ISA exclusive
ISA exclusive
ISA exclusive
ISA exclusive
ISA exclusive (CAN)
ISA exclusive
ISA exclusive
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