Figure 17.23 Communication Protocol Format - Renesas H8SX/1520 Series Hardware Manual

32-bit cisc microcomputer

Hide thumbs Also See for H8SX/1520 Series:

Table of Contents

5. Memory read response

This response consists of four bytes of data.

One-byte command

or one-byte response

n-byte Command or

n-byte response

Error response

128-byte programming

• Command (one byte): Commands including inquiries, selection, programming, erasing, and

• Response (one byte): Response to an inquiry

• Size (one byte): The amount of data for transmission excluding the command, amount of data,

and checksum

• Checksum (one 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 (one byte): Error response to a command

• Error code (one byte): Type of the error

• Address (four bytes): Address for programming

• Data (n bytes): Data to be programmed (the size is indicated in the response to the

programming unit inquiry.)

• Size (four bytes): Four-byte response to a memory read

Downloaded from

electronic components distributor

Command or response

Command or response

Error response

Data (n bytes)

Figure 17.23 Communication Protocol Format

Section 17 Flash Memory (0.18-(m F-ZTAT Version)

Rev. 3.00 Mar. 14, 2006 Page 633 of 804

REJ09B0104-0300

Table of Contents