Technical specifications
8.5 Hardware description
8.5.2
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:
Microsoft Windows XP Pro (32-bit)
Microsoft Windows Server 2008 (32-bit) /
2008 R2 (64-bit) incl. 5 clients
Windows 7 Ultimate (32-bit and 64-bit)
8.5.3
Interrupt assignment
Interrupt assignment depending on operating system
The functions are assigned different interrupts (IRQ), depending on the operating system. A
distinction is made between PIC and APIC mode.
Host PCI-IRQ A to H is assigned to IRQ 16 to 23 permanently in APIC mode. Host PCI-IRQ A to H is automatically
1
assigned to IRQ 0 to 15 in PIC mode by the BIOS. A specific assignment cannot be forced.
X
Interrupt PIC and APIC mode
Z
BIOS Default Interrupt PIC mode, e.g. DOS
104
1. In the Windows Start menu, select "Start -> Run".
2. Enter "msinfo32" in the Open field and confirm your
input with "OK".
1. In the Windows Start menu, select "Start > Search".
2. Enter "msinfo32" in the search function.
3. Open the application.
Y
Interrupt APIC mode
Operating Instructions, 06/2011, A5E03473780-01
SIMATIC IPC547D