Renesas H8S/2437 Hardware Manual page 643

Command H'4B
• Command, H'4B, (one byte): Sum check for user MAT
Response H'5B
• Response, H'5B, (one byte): Response to the sum check of the user MAT
• Size (one byte): The number of bytes that represents the checksum
This is fixed to 4.
• Checksum of MATs (four bytes): Checksum of user MATs
The total of the data is obtained in byte units.
• SUM (one byte): Sum check for data being transmitted
(14) User Boot MAT Blank Check
The boot program will check whether or not all user boot MATs are blank and return the result.
Command H'4C
• Command, H'4C, (one byte): Blank check for user boot MAT
Response H'06
• Response, H'06, (one byte): Response to the blank check of user boot MAT
If all user boot MATs are blank (H'FF), ACK will be returned.
Error Response H'CC
• Error response, H'CC, (one byte): Error response to blank check for user boot MAT
• Error code, H'52, (one byte): Erasure has not been completed.
(15) User MAT Blank Check
The boot program will check whether or not all user MATs are blank and return the result.
Command H'4D
• Command, H'4D, (one byte): Blank check for user MATs
Response H'06
• Response, H'06, (one byte): Response to the blank check for user MATs
If all user MATs are blank (H'FF), ACK will be returned.
Error Response H'CD
• Error Response, H'CD, (one byte): Error response to the blank check of user MATs.
• Error code, H'52, (one byte): Erasure has not been completed.
Size Checksum of MATs
H'52
H'52
SUM
Rev. 1.00, 09/03, page 605 of 704