R5F72115D160FPV datasheet(1000/1228 Pages) RENESAS

1000 / 1228 page

Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 976 of 1200

REJ09B0344-0200

(11) 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

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

Response

H'5A

Size

Checksum for the MAT

SUM

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

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

• 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.

• SUM (1 byte): Checksum (for the transmitted data)

(12) 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

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

Response

H'5B

Size

Checksum for the MAT

SUM

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

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

• 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.

• SUM (1 byte): Checksum (for the transmitted data)

R5F72115D160FPV Datasheet(PDF) 1000 Page - Renesas Technology Corp