r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1090

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 21 Flash Memory
Rev. 1.00 Sep. 19, 2008 Page 1062 of 1270
REJ09B0466-0100
Figure 21.7 Flowchart of Full Status Check Processing and Corrective Actions for Each
Note: When either the FMPRSF or FMERSF bit is 1 (ended with error), the program, block erase, and block blank check
Full status check
full status check
commands are not accepted. Execute a clear status register command and then execute a desired command again.
FMERSF =1 ?
FMPRSF = 1
FMPRSF = 0?
FMERSF = 0?
End of
and
YES
YES
NO
YES
NO
NO
Command sequence
Programming error
Erase error
error
Error
. . .
. . .
. . .
[During program execution]
(1)
(2)
(1)
(2)
(1)
(2)
Note: If an error still occurs, the block cannot be used.
Note: If an error still occurs, the block cannot be used.
Execute a clear status register command to clear the FMPRSF and
FMERSF bits to 0 (successfully completed state).
Check if the command was input correctly, and execute it again.
Execute a clear stats register command to clear the FMERSF bit
to 0 (successfully completed state).
Execute a block erase command.
Repeat steps (1), (2), and (3) at least three times until no block erase
error occurs.
Execute a clear stats register command to clear the FMPRSF bit
to 0 (successfully completed state).
Execute a block erase command again.