SH7018 Datasheet, PDF (372/431 Pages) Renesas Technology Corp – SuperH™ RISC engine

Program mode
Erase mode
RD VF PR ER FLER = 0
RES = 0
Reset or standby
(hardware protection)
RD VF PR ER FLER = 0
Error
occurrence
Error occurrence
(Standby)
RES = 0
RES = 0
FLMCR1, EBR1, EBR2
initialization state
Error protection mode
Standby mode
Error protection mode
(Standby)
RD VF PR ER FLER = 1
Standby mode
release
RD VF PR ER FLER = 1
FLMCR1, EBR1, EBR2
initialization state
Legend
RD: Memory read possible
VF: Verify-read possible
PR: Programming possible
ER: Erasing possible
RD: Memory read not possible
VF: Verify-read not possible
PR: Programming not possible
ER: Erasing not possible
Figure 16.14 Flash Memory State Transitions
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