Memory; Sram; Flash Eprom; Serial Flash - Rabbit RabbitCore RCM4200 User Manual

C-programmable analog core module with serial flash and etherne

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4.6 Memory

All RCM4200 modules have 512K of battery-backed data SRAM installed at U10, and the

RCM4200 model has 512K of fast SRAM installed at U12.

All RCM4200 modules also have 512K of flash EPROM installed at U11.

NOTE: Rabbit Semiconductor 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 discouraged. Instead, define a

"user block" area to store persistent data. The functions writeUserBlock and

readUserBlock are provided for this. Refer to the

Designer's Handbook

Up to 8 Mbytes of serial flash memory is available to store data and Web pages. Sample

programs in the SAMPLES\RCM4200\Serial_Flash folder illustrate the use of the

serial flash memory.

User's Manual

for additional information.

Rabbit 4000 Microprocessor

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