M32CSLASH86 datasheet(438/505 Pages) RENESAS

438 / 505 page

Page 415

25. Flash Memory Version

)

(

Full status check

FMR06 =1

and

FMR07=1?

Command

sequence error

YES

FMR07=0?

YES

Erase error

(1) Execute the clear status register command and set the SR5 and SR4

bits to "0" (successfully completed) .

(2) Execute the correct commands again.

(1) Execute the clear status register command and set the SR5 bit to "0".

(2) Execute the lock bit read status command. Set the FMR02 bit to "1" (

lock bit disabled) if the lock bit in the block where the error occurred is

set to "0" (locked).

(3) Execute the block erase or erase all unlocked block command again.

NOTE: If similar error occurs, that block cannot be used.

If the lock bit is set to "1" (unlocked) in (2) above, that block

cannot be used.

FMR06=0?

YES

Program error

Full status check completed

(1) Execute the clear status register command and set the SR4 bit to "0"(

successfully completed) .

(2) Execute the read lock bit status command and set the FMR02 bit to "1" if

the lock bit in the block where the error occurred is set to "0".

(3) Execute the program command again.

NOTE: If a similar error occurs, that block cannot be used.

If the lock bit is set to "1" in (2) above, that block cannot be used.

[When a program operation is executed]

[When a lock bit program operation is executed]

NOTE: When either FMR06 or FMR07 bit is set to "1" (terminated by error) , the program, block erase, erase all unlocked block, lock bit

program and read lock bit status commands cannot be accepted.

Execute the clear status register command before each command.

(1) Execute the clear status register command and set the SR4 bit to "0".

(2) Set the FMR02 bit in the FMR0 register to "1".

(3) Execute the block erase command to erase the block where the error

occurred.

(4) Execute the lock bit program command again.

NOTE: If similar error occurs, that block cannot be used.

Figure 25.13 Full Status Check and Handling Procedure for Each Error

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