SH7080 Datasheet, PDF(1368/1644 Page) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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SH7080 Datasheet, PDF (1368/1644 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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Section 23 Flash Memory

â¢ Sum checking of the user boot MAT

In response to the command for sum checking of the user boot MAT, the boot program adds all

bytes of data in the user boot MAT and returns the result.

Command H'4A

ï£§ Command H'4A (1 byte): Sum checking of the user boot MAT

Response

H'5A

Size

Checksum for the MAT

SUM

ï£§ Response H'5A (1 byte): Response to sum checking of the user boot MAT

ï£§ Size (1 byte): The number of characters in the checksum for the MAT (fixed at 4)

ï£§ Checksum for the MAT (4 bytes): Result of checksum calculation for the user boot MAT:

the total of all data in the MAT, in byte units.

ï£§ SUM (1 byte): Checksum (for the transmitted data)

â¢ Sum checking of the user MAT

In response to the command for sum checking of the user MAT, the boot program adds all bytes of

data in the user MAT and returns the result.

Command H'4B

ï£§ Command H'4B (1 byte): Sum checking of the user MAT

Response

H'5B

Size

Checksum for the MAT

SUM

ï£§ Response H'5B (1 byte): Response to sum checking of the user MAT

ï£§ Size (1 byte): The number of characters in the checksum for the MAT (fixed at 4)

ï£§ Checksum for the MAT (4 bytes): Result of checksum calculation for the user MAT:

the total of all data in the MAT, in byte units.

ï£§ SUM (1 byte): Checksum (for the transmitted data)

Rev. 3.00 May 17, 2007 Page 1310 of 1582

REJ09B0181-0300

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