M30222 Datasheet, PDF (223/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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Specifications in this manual are tentative and subject to change
MITSUBISHI MICROCOMPUTERS
M30222 Group
Rev. G
Serial I/O Mode 1 (Flash Memory Version)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Full Status Check
Results from executed erase and program operations can be known by running a full status check.
Figure 1.182 shows a flowchart of the full status check and explains how to remedy errors which occur.
Read status register
SR4=1
and SR5
=1 ?
YES
Command
sequence error
NO
SR5=0? ^{NO Block erase error}
YES
NO
SR4=0?
Program error
YES
End (block erase program)
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.
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
Fig. 1.182. Full status check flowchart and remedial procedure for errors
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