r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 1156

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 22 Flash Memory
22.7
When an error occurs, the FMERSF or FMPRSF bit in FLMSTR becomes 1 to indicate
occurrence of the error. Read these status bits (full status check) to check the operation results.
Table 22.8 shows the errors and FLMSTR status and figure 22.9 shows a flowchart of full status
check processing and corrective actions for each error.
Table 22.8 Errors and Register Status
Note:
Rev. 1.00 Sep. 19, 2008 Page 1126 of 1342
REJ09B0467-0100
FMERSF Bit
(SR5)
1
1
0
State of FLMSTR
(Status Register)
*
Full Status Check
When H'xxFF is written in the second bus cycle of this command, the flash memory
enters the read array mode and the command code written in the first bus cycle is
ignored.
FMPRSF Bit
(SR4)
1
0
1
Command
sequence error
error
Error
Erase error
Programming
Error Conditions
•
•
•
•
•
H'xxD0 or H'xxFF) is written in the second
bus cycle of a block erase command*
the block is not erased correctly
issued and the checked block is not blank
automatic writing is not done correctly
When a command is not issued correctly
When an invalid value (a value other than
When a block erase command is issued but
When a block blank check command is
When a program command is issued but