Datasheet

Section 24 Flash Memory
Rev. 2.00 Sep. 28, 2009 Page 825 of 994
REJ09B0452-0200
(e) Block Erasure
The boot program will erase the contents of the specified block.
Command H'58 Size Block number SUM
• Command, H'58, (one byte): Erasure
• Size (one byte): The number of bytes that represents the erase block number
This is fixed to 1.
• Block number (one byte): Number of the block to be erased
• SUM (one byte): Checksum
Response H'06
• Response, H'06, (one byte): Response to Erasure
After erasure has been completed, the boot program will return ACK.
Error Response H'D8 ERROR
• Error Response, H'D8, (one byte): Response to Erasure
• ERROR (one byte): Error code
H'11: Sum check error
H'29: Block number error
Block number is incorrect.
H'51: Erasure error
An error has occurred during erasure.
On receiving block number H'FF, the boot program will stop erasure and wait for a selection
command.
Command H'58 Size Block number SUM
• Command, H'58, (one byte): Erasure
• Size, (one byte): The number of bytes that represents the block number
This is fixed to 1.
• Block number (one byte): H'FF
Stop code for erasure
• SUM (one byte): Checksum
Response H'06
• Response, H'06, (one byte): Response to end of erasure (ACK)
When erasure is to be performed after the block number H'FF has been sent, the procedure
should be executed from the erasure selection command.