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7542 Group
Full Status Check
By performing full status check, it is possible to know the execu-
tion results of erase and program operations. Figure 101 shows a
full status check flowchart and the action to be taken when each
error occurs.
Read status register
SR4 = "1" and
SR5 = "1" ?
NO
SR5 = "0" ?
YES
SR4 = "0" ?
YES
End (block erase, program)
Note: When one of SR5 and SR4 is set to "1", none of the read array, program,
and block erase commands is accepted. Execute the clear status register
command (50
Fig. 101 Full status check flowchart and remedial procedure for errors
Rev.3.02
Oct 31, 2006
REJ03B0006-0302
YES
Command
sequence error
NO
Erase error
NO
Program error
) before executing these commands.
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Page 80 of 134
Execute the clear status register command (50
to clear the status register. Try performing the
operation one more time after confirming that the
command is entered correctly.
Should an erase error occur, the block in error
cannot be used.
Should a program error occur, the block in error
cannot be used.
)
16
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