User`s manual

OEM User’s Manual 39
4.6 Memory
4.6.1 SRAM
RCM5600W boards have 1MB of SRAM installed at U10.
4.6.2 Flash Memory
RCM5600W boards have 1MB of serial flash memory installed at U4. The RCM5650W
has 4MB of serial flash memory installed at U4.
A “user block” area is defined to store persistent data. The function calls writeUser-
Block()
and readUserBlock() are provided for this. Refer to the Dynamic C Function
Reference Manual
for additional information.
4.6.3 Encryption RAM Memory
The tamper detection feature of the Rabbit 5000 microprocessor can be used to detect any
attempt to enter the bootstrap mode. When such an attempt is detected, the VBAT RAM
memory in the Rabbit 5000 chip is erased.