Siemens SIMATIC IPC627D Operating Instructions Manual page 142

Technical specifications
8.5 Hardware descriptions
Exclusive interrupt in PIC mode
The interrupts are automatically assigned to the slots at system startup due to the default
settings in system BIOS.
Several slots may share the same interrupt, depending on the system configuration. This
functionality is known as interrupt sharing. Exclusive interrupts are not available in PIC
mode. Disable specific system resources in order to obtain exclusive interrupts. BIOS
assigns the PIC interrupts at random during restart of the system.
Memory address assignments
PCI VGA modules can be operated with expansion ROM up to 48 K.
0000 0000
0008 0000
0009 F800
000A 0000
000B 0000
000B 8000
000C 0000
000C 0000
000E 0000
0010 0000
EFFF F000
F000 0000
FED0 0000
FED1 0000
FED1 8000
FED1 9000
FED1 C000
FED2 0000
FED4 0000
FED9 0000
FEE0 0000
FF00 0000
142
Address
From To
0007 FFFF
0009 F7FF
0009 FFFF
000A FFFF
000B 7FFF
000B FFFF
000C BFFF
000C FFFF
000F FFFF
CFFF FFFF
EFFF FFFF
F3FF FFFF
FED0 03FF
FED1 7FFF
FED1 8FFF
FED1 9FFF
FED1 FFFF
FED3 FFFF
FED4 4FFF
FED9 3FFF
FEEF FFFF
FFFF FFFF
Size Description of the basic function Alternative function
512 K Conventional system memory
126 K Conventional system memory
extended
2 K XBDA, extended Bios Data
Area
64 K VGA graphics refresh memory
32 K Software graphics / text refresh
memory
32 K VGA graphics/text refresh
memory
48 K VGA BIOS expansion
64 K VGA BIOS
2 × 64K DMI data, System BIOS,
Options ROMs: PXE, RAID
3.2 GB System memory 4 GB memory
configuration
4 K Motherboard resources
64 M Motherboard resources
1 K High Precision Event Timer
32 K Motherboard resources
4 K Motherboard resources
4 K Motherboard resources
16 K Motherboard resources
128 K Motherboard resources
20 K Trusted Platform Module 1.2
16 K Motherboard resources
1 M Motherboard resources
16 M Motherboard resources
Operating Instructions, 09/2014, A5E32990859-AB
Shared SMM for power
management
Not used
Always allocated or
reserved
Depends on memory
configuration
Intel 82802 firmware
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SIMATIC IPC627D/827D