7643 datasheet(96/424 Pages) RENESAS

tên linh kiện	7643

Giải thích chi tiết về linh kiện	8-BIT SINGLE-CHIP MICROCOMPUTER

PDF	424 Pages

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nhà sản xuất	RENESAS [Renesas Technology Corp]

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96 / 424 page

Rev.2.00

Aug 28, 2006

page 79 of 103

REJ09B0133-0200

OVERVIEW

FLASH MEMORY MODE

7643 Group

Full Status Check

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

tion results of erase and program operations. Figure 76 shows a

Fig. 76 Full status check flowchart and remedial procedure for errors

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

error occurs.

Read status register

SR4 = 1 and

SR5 = 1 ?

YES

SR5 = 0 ?

YES

Erase error

SR4 = 0 ?

YES

Command

sequence error

Program error

End (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 aray, the program, erase

all blocks, 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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