M38047FEHKP datasheet(87/116 Pages) RENESAS

87 / 116 page

Rev.1.01

Jan 25, 2005

page 87 of 114

REJ03B0131-0101Z

3804 Group (Spec. H)

q Full Status Check

By performing full status check, it is possible to know the execu-

tion results of erase and program operations. Figure 84 shows a

full status check flowchart and the action to be taken when each

error occurs.

Fig. 84 Full status check flowchart and remedial procedure for errors

Read status register

SR4 = “1” and

SR5 = “1” ?

YES

SR5 = “0” ?

YES

Erase error

SR4 = “0” ?

YES

Command

sequence error

Program error

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 an erase error occur, the block in error

cannot be used.

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 (5016) before executing these commands.

Should a program error occur, the block in error

cannot be used.

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