r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 978

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 22 Flash Memory
Rev. 1.00 Sep. 21, 2007 Page 952 of 1124
REJ09B0402-0100
 Command (1 byte): Inquiry, selection, programming, erasure, checking, etc.
 Response (1 byte): Response to an inquiry
 Size (one or two bytes): The length of data for transfer, excluding the command/response
 Data (n bytes): Particular data for the command or response
 Checksum (1 byte): Set so that the total sum of byte values from the command code to the
 Error response (1 byte): Error response to a command
 Error code (1 byte): Indicates the type of error.
 Address (4 bytes): Address for programming
 Data (n bytes): Data to be programmed. "n" is known from the response to the command
 Data size (4 bytes): Four-byte field included in the response to a memory reading
One-character command
or one-character response
n-character command
or n-character response
Error response
128-byte
programming command
Response to
memory read command
code, size, and checksum.
checksum is H'00 in the lower-order 1 byte.
used to inquire about the programming size.
command.
Figure 22.24 Formats in the Communications Protocol
Command or response
Command
Response
Address
Data size
Data
Size
Command or response
Error code
Error response
Data (n bytes)
Data
Checksum
Checksum
Checksum