Detailed descriptions
16.4 I/O Address Areas
SIMATIC IPC427C
142 Operating Instructions, 04/2009, A5E02414743-01
16.4.7 SRAM address register
The battery-buffered SRAM uses a 2 MB memory address area, which can be read via the
PCI register.
Meaning of the bits
SRAM address register
PCI register address:
SRAM base address register
PCI register content:
SRAM memory address (default)
Length of the memory area
8010 2010h 9040 0000h
Address is assigned dynamically
(depending on device)
20 0000h
