SH7040 Datasheet, PDF (721/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

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.
User mode ^{*1 MD1=1R,EFSW=0P=1}
Reset state
RES=0
*2
FWP=0 ^FWP=1
User
*1
program mode
Boot mode
On-board programming mode
Programmer
mode
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
Figure 22.2 Flash Memory Mode Transitions
683