7643 datasheet(113/424 Pages) RENESAS

tên linh kiện	7643

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

PDF	424 Pages

Scroll/Zoom	100%

nhà sản xuất	RENESAS [Renesas Technology Corp]

Trang chủ	http://www.renesas.com

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113 / 424 page

Rev.2.00

Aug 28, 2006

page 96 of 103

REJ09B0133-0200

OVERVIEW

FLASH MEMORY MODE

7643 Group

Full Status Check

Results from executed erase and program operations can be

known by running a full status check. Figure 92 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

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 to SR4 is set to “1” , none of the page read, 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.

Fig. 92 Full status check flowchart and remedial procedure for errors

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