101-0522 Rabbit Semiconductor, 101-0522 Datasheet - Page 39
![no-image](/images/no-image-200.jpg)
101-0522
Manufacturer Part Number
101-0522
Description
MODULE RABBITCORE RCM3220
Manufacturer
Rabbit Semiconductor
Datasheet
1.101-0522.pdf
(169 pages)
Specifications of 101-0522
Module/board Type
MPU Core Module
For Use With/related Products
RCM3220
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
101-522
101-522
101-522
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4.5 Memory
4.5.1 SRAM
RCM3700 series boards have 256K–512K of SRAM.
4.5.2 Flash EPROM
RCM3700 series boards also have 256K–512K of flash EPROM.
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 surface-mounted
resistors exists at header JP1 on the RCM3700 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 512K flash in such a way that both pro-
grams start at logical address 0000. This is useful for applications that require a resident
download manager and a separate downloaded program. See Technical Note TN218 in the
online documentation,
details.
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.
RabbitCore RCM3700 User’s Manual
NOTE: Rabbit 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.
Implementing a Serial Download Manager for a 256K Flash
for additional information.
Rabbit 3000 Micropro-
, for
37
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