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SH7041A Fiches technique(PDF) 724 Page - Renesas Technology Corp

No de pièce SH7041A
Description  Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
PDF  923 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7041A Fiches technique(HTML) 724 Page - Renesas Technology Corp

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22.2.4
Flash Memory Emulation in RAM
Emulation should be performed in user mode or user program mode. When the emulation block
set in RAMER is accessed while the emulation function is being executed, data written in the
overlap RAM is read.
• User Mode
• User Program Mode
RAM
Flash memory
Application program
Emulation block
Overlap RAM (Emulation is executed
using data written to RAM)
SCI
Figure 22.5 Emulation
When overlap RAM data is confirmed, the RAMS bit is cleared, RAM overlap is released, and
writes should actually be performed to the flash memory.
When the programming control program is transferred to RAM, ensure that the transfer
destination and the overlap RAM do not overlap, as this will cause data in the overlap RAM to
be rewritten.



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