Memory Address Assignments - Siemens Simatic IPC647C Operating Instructions Manual

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.
PCI interrupt channels must be derived from the PIC interrupt pool, that is PCI modules also
use PIC resources. These IRQ channels are assigned automatically.
The Host PCI IRQ channels A to H are permanently assigned in APIC mode. These default
settings cannot be modified.
The host PCI IRQ channels A to H in PIC mode are assigned automatically by the BIOS. The
assignment can be changed by disabling functions. You can also assign free IRQs to the
host PCI IRQ line in the BIOS menu "PCI Configuration".
16.4.2.3

Memory address assignments

PCI VGA modules can be operated with expansion ROM up to 48K.
Address
from
0000 0000
0008 0000
0009 F800
000A 0000
000B 0000
000B 8000
000C 0000
000C 0000
000C F000
000C F000
000D 0000
000C F000
000D 3800
000C F000
000D 4800
000E 0000
000E 2000
000E 4000
0010 0000
E000 0000
FFF0 0000
Optional memory allocation, depending on settings in BIOS Setup
1)
SIMATIC IPC647C
Operating Instructions, 12/2010, A5E02669337-02
Size
to
0007 FFFF 512K
0009 F7FF 127K
0009 FFFF 2K
000A FFFF 64K
000B 7FFF 32K
000B FFFF 32K
000C BFFF 48K
000C E9FF 59K
1)
000D FFFF 68K
1)
000C FFFF 4K
1)
000D FFFF 64K
1)
000D 37FF 18K
1)
000D FFFF 50K
1)
000D 47FF 22K
1)
000D FFFF 46K
1)
000E 1FFF 8K
000E 3FFF 8K
000F FFFF 112K
CFFF FFFF 3.25 GB
FFEF FFFF 511 MB
FFFF FFFF 1 MB
Description of the basic function Possible alternative
Conventional system memory
Conventional system memory
extended
XBDA, extended Bios Data Area
VGA graphics refresh memory
SW graphics / text refresh
memory
VGA graphics/text refresh
memory
VGA BIOS expansion
VGA BIOS
Not used (no RAID, no PXE)
PXE
Not used (no RAID, with PXE)
RAID
Not used (RAID, no PXE)
RAID and PXE
Not used
USB
DMI data
System BIOS
System memory 4 GB memory
configuration
PCIe Configuration Space
Firmware HUB
Detailed descriptions
16.4 System resources
function
Shared SMM for power
management
Not used
Always occupied
via EMM High DOS
Memory
via EMM High DOS
Memory
via EMM High DOS
Memory
Depends on memory
configuration
177