Renesas H8S/2319 series Hardware Manual page 764

One-Byte Command
or One-Byte Response
n-Byte Command or
n-Byte Response
Error Response
128-Byte Programming
Memory Read
Response
• Command (1 byte): Commands including inquiries, selection, programming, erasing, and
checking
• Response (1 byte): Response to an inquiry
• Size (1 byte): The amount of data for transmission excluding the command, amount of data,
and checksum
• Checksum (1 byte): The checksum is calculated so that the total of all values from the
command byte to the SUM byte becomes H'00
• Data (n bytes): Detailed data of a command or response
• Error Response (1 byte): Error response to a command
• Error Code (1 byte): Type of the error
• Address (4 bytes): Address for programming
• Data (n bytes): Data to be programmed (the size is indicated in the response to the
programming unit inquiry.)
• Size (4 bytes): Four-byte response to a memory read
Rev. 5.00, 12/03, page 734 of 1088
Command or Response
Data
Size
Command or Response
Error Code
Error Response
Address Data (n bytes)
Command
Size Data
Response
Figure 17-84 Communication Protocol Format
Checksum
Checksum
Checksum