M38503MXH Datasheet, PDF (45/86 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Full Status Check
By performing full status check, it is possible to know the execution
results of erase and program operations. Figure 49 shows a full sta-
tus check flowchart and the action to be taken when each error oc-
curs.
Read status register
YES
SR4=1 and SR5
=1 ?
Command
sequence error
NO
SR5=0? ^NO
Block erase error
YES
NO
SR4=0?
Program error
YES
Execute the clear status register command (5016)
to clear the status register. Try performing the
operation one more time after confirming that the
command is entered correctly.
Should a block erase error occur, the block in error
cannot be used.
Should a program error occur, the block in error
cannot be used.
End (block erase, program)
Note: When one of SR5 to SR4 is set to “1” , none of the program, erase all blocks,
and block erase commands is accepted. Execute the clear status register
command (5016) before executing these commands.
Fig. 49 Full status check flowchart and remedial procedure for errors
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