R01US0079ED0103 Datasheet, PDF (54/66 Pages) Renesas Technology Corp – RENESAS 32-Bit MCU

Data Flash Access Library - Type T01, European Release
User Interface (API)
R_FDL_CMD_READ Start
Clear ECC errors
1
Backup ECC interrupt status
Disable ECC interrupt status 2
Read data from Data Flash into
destination buffer
N
Y
Save address that
provoked the ECC error
Read ECC errors
Double bit error
N
Single bit error
Y
Save address that
provoked the ECC error
N
Last read address ?
Y
Clear ECC errors
1
Restore ECC interrupt status
3
R_FDL_CMD_READ End
Figure 14: Handling of ECC error registers during read command
The user shall take into consideration that the following registers are modified:
1. DFERSTC register is written to clear any errors in DFFSTERSTR
2. DFERRINT register is backed up and cleared
3. DFERRINT register is restored
R01US0079ED0103
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User Manual