About Flash Memory CRC Operation Function (high-speed CRC) in the F23.

Question

Hello. Renesas Team. 
 
 there are only two registers related to the high-speed CRC function: CRC0CTL and PGCRCL. I understand that it works at the start of HALT instruction. However, I do not expect detailed action. 
 The summary of my questions is as follows . 
 Q1. There is no register to know when the CRC calculation ended. Can I know the completion of the calculation? Q2. Does the status transition automatically occur from HALT to NORMAL after the CRC calculation is completed? Q3. If Q2's answer is no, should i wake up MCU at the expected end time( when CRC calculation is completed )? 
 
 Thanks

JimB · Accepted Answer

A1: As the CPU enters the HALT state to start the CRC calc, when finished the HALT mode is released, and execution continues from after the HALT insn. 
 A2: Yes 
 A3: n/a 
 Refer to the flow chart from the hardware U/M for the usage of the high-speed CRC

JimB · Answer

The serial programming verify function only compares contents of memory to the hex-file provided, it does no CRC operations.

About Flash Memory CRC Operation Function (high-speed CRC) in the F23.

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