p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 581

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Command
• Command, H'4A (1 byte): Sum check for user boot MAT
Response
• Response, H'5A (1 byte): Response to the checksum of user boot MAT
• Size (1 byte): The number of characters that represents the checksum.
• Checksum of MAT (4 bytes): Checksum of user boot MATs.
• SUM (1 byte): Checksum (for transmit data)
(13) User MAT Sum Check
The boot program will return the total amount of bytes of the user MAT contents in response to
the user MAT sum check command.
Command
• Command, H'4B (1 byte): Checksum for user MAT
Response
• Response, H'5B (1 byte): Response to the checksum of the user MAT
• Size (1 byte): The number of characters that represents the checksum.
• Checksum of MAT (4 bytes): Checksum of user MATs.
• SUM (1 byte): Checksum (for transmit data)
(14) User Boot MAT Blank Check
The boot program will check whether or not all user boot MATs are blank and return the result in
response to the user boot MAT blank check command.
Command
• Command, H'4C (1 byte): Blank check for user boot MATs
Response
• Response, H'06 (1 byte): Response to blank check of user boot MATs.
Fixed at 4.
The total amount of data is obtained in byte units.
Fixed at 4.
The total amount of data is obtained in byte units.
If all user boot MATs are blank (H'FF), the boot program will return ACK.
H'4A
H'5A
H'4B
H'5B
H'4C
H'06
Size
Size
Checksum of MAT
Checksum of MAT
Section 19 Flash Memory (0.18-µm F-ZTAT Version)
Rev. 1.00 Sep. 21, 2006 Page 543 of 658
SUM
SUM
REJ09B0310-0100