r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 691

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
32.4.12 Full Status Check
Table 32.6
Note:
1
1
0
1. When FFh is written in the second bus cycle of these commands, the MCU enters read array mode.
FST Register Status
FST5
If an error occurs, bits FST4 and FST5 in the FST register are set to 1, indicating the occurrence of an error. The
execution result can be confirmed by checking these status bits (full status check).
Table 32.6 lists the Errors and FST Register Status. Figure 32.17 shows the Full Status Check and Handling
Procedure for Individual Errors.
At the same time, the command code written in the first bus cycle is invalid.
1
0
1
Errors and FST Register Status
FST4
Command
sequence error
Erase error
Blank check error When the block blank check command is executed and
Program error
Lock bit program
error
Error
• When a command is not written correctly.
• When data other than valid data (i.e., D0h or FFh) is
• The erase command is executed during suspend
• The command is executed to the block during suspend
When the block erase command is executed, but auto-
erasure does not complete correctly.
data other than blank data FFh is read.
When the program command is executed, but auto-
programming does not complete correctly.
When the lock bit command is executed, but the lock bit is
not set to 0 (locked).
written in the second bus cycle of the block erase
command
(1)
.
Error Occurrence Condition
32. Flash Memory
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