101-0517 Rabbit Semiconductor, 101-0517 Datasheet - Page 34

• Manufacturer Part Number: 101-0517
• Description: MODULE RABBITCORE RCM3100
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0517

• Rohs Status: RoHS non-compliant
• Module/board Type: MPU Core Module
• For Use With/related Products: RCM3100
• Other names: 316-1021

4.5 Memory
4.5.1 SRAM
The RCM3100 can accept 128K to 512K of SRAM at U4.
4.5.2 Flash EPROM
The RCM3100 can accept 256K to 512K of flash EPROM.
Writing to arbitrary flash memory addresses at run time is also discouraged. Instead,
define a “user block” area to store persistent data. The functions
readUserBlock
A Flash Memory Bank Select jumper configuration option based on 0 Ω surface-mounted
resistors exists at header JP1 on the RCM3100 RabbitCore modules. This option, used in
conjunction with some configuration macros, allows Dynamic C to compile two different
co-resident programs for the upper and lower halves of the 256K flash in such a way that
both programs start at logical address 0000. This is useful for applications that require a
resident download manager and a separate downloaded program. See Technical Note 218,
Implementing a Serial Download Manager for a 256K Flash, for details.
4.5.3 Dynamic C BIOS Source Files
The Dynamic C BIOS source files handle different standard RAM and flash EPROM sizes
automatically.
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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.
are provided for this.
writeUserBlock
RabbitCore RCM3100
and