M30625FGLGP 查看數據表（PDF） - Renesas Electronics

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M30625FGLGP

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Renesas Electronics 

CPU Rewrite Mode

Mitsubishi microcomputers

M16C / 62 Group (80-pin)

SINGLE-CHIP 16-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 1.22.8 shows a full status check flowchart and the action to be taken when each

error occurs.

Read status register

YES

SR4=1 and SR5

=1 ?

Command

sequence error

NO

SR5=0? NO Block erase error

YES

SR4=0?

NO Program error (page

or lock bit)

YES

SR3=0? NO

YES

End (block erase, program)

Program error

(block)

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.

Execute the read lock bit status command (7116)

to see if the block is locked. After removing lock,

execute write operation in the same way. If the

error still occurs, the page in error cannot be

used.

After erasing the block in error, execute write

operation one more time. If the same error still

occurs, the block in error cannot be used.

Note: When one of SR5 to SR3 is set to 1, none of the page program, block erase,

erase all unlock blocks and lock bit program commands is accepted. Execute the

clear status register command (5016) before executing these commands.

Figure 1.22.8. Full status check flowchart and remedial procedure for errors

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