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SH7041A Fiches technique(PDF) 721 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) 721 Page - Renesas Technology Corp

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22.2.2
Mode Transition Diagram
When the mode pins and the FWP pin are set in the reset state and a reset start is executed, the
microcomputer enters one of the operating modes shown in figure 22.2. In user mode, flash
memory can be read but not programmed or erased.
Flash memory can be programmed and erased in boot mode, user program mode, and programmer
mode.
RES=0
FWP=0
FWP=1
*1
*1
*2
MD1=1,
FWP=1
RES=0
Notes: Execute transition between the user mode
and user program mode while the CPU is
not programming or erasing the flash memory.
*1 RAM emulation permitted
*2 MD0=1, MD1=0, MD2=1, MD3=1
Reset state
User mode
User
program mode
Boot mode
Programmer
mode
On-board programming mode
Figure 22.2 Flash Memory Mode Transitions



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