HD64F2168 Datasheet, PDF (733/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Command H'4C
• Command, H'4C, (1 byte): Blank check for user boot MAT
Response H'06
• Response, H'06, (1 byte): Response to the blank check of user boot MAT
If all user MATs are blank (H'FF), the boot program will return ACK.
Error Response H'CC H'52
• Error Response, H'CC, (1 byte): Response to blank check for user boot MAT
• Error Code, H'52, (1 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, (1 byte): Blank check for user MATs
Response H'06
• Response, H'06, (1 byte): Response to the blank check for user boot MATs
If the contents of all user MATs are blank (H'FF), the boot program will return ACK.
Error Response H'CD H'52
• Error Response, H'CD, (1 byte): Error response to the blank check of user MATs.
• Error code, H'52, (1 byte): Erasure has not been completed.
(16) Boot Program State Inquiry
The boot program will return indications of its present state and error condition. This inquiry can
be made in the inquiry/selection state or the programming/erasing state.
Command H'4F
• Command, H'4F, (1 byte):
Inquiry regarding boot program’s state
Response H'5F Size Status
ERROR SUM
• Response, H'5F, (1 byte): Response to boot program state inquiry
• Size (1 byte): The number of bytes. This is fixed to 2.
• Status (1 byte): State of the boot program
• ERROR (1 byte): Error status
ERROR = 0 indicates normal operation.
ERROR = 1 indicates error has occurred.
• SUM (1 byte): Sum check
Rev. 3.00, 03/04, page 693 of 830