Memory; Sram; Flash Eprom; Serial Flash - Rabbit RabbitCore User Manual

4.5 Memory

4.5.1 SRAM

RCM3750 modules have 512K of SRAM.

4.5.2 Flash EPROM

RCM3750 modules also have 512K of flash EPROM.
NOTE: Rabbit Semiconuctor recommends that any customer applications should not be
constrained by the sector size of the flash EPROM since it may be necessary to change
the sector size in the future.
Writing to arbitrary flash memory addresses at run time is also discouraged. Instead, use a
portion of the "user block" area to store persistent data. The functions writeUser-
Block and readUserBlock are provided for this. Refer to the
cessor Designer's Handbook
A Flash Memory Bank Select jumper configuration option based on 0 Ω surface-mounted
resistors exists at header JP1 on the RCM3750 modules. This option is reserved for future
use.

4.5.3 Serial Flash

A 1Mbyte serial flash is available to store data and Web pages. Sample programs in the
SAMPLES\RCM3700 folder illustrate the use of the serial flash.

4.5.4 Dynamic C BIOS Source Files

The Dynamic C BIOS source files handle different standard RAM and flash EPROM sizes
automatically.
User's Manual
for additional information.
Rabbit 3000 Micropro-
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