SH7125_08 Datasheet, PDF(670/774 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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SH7125_08 Datasheet, PDF (670/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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Section 17 Flash Memory

Error

response

H'D8

ERROR

ï£§ Error response H'D8 (1 byte): Error response to the block erasure command

ï£§ ERROR (1 byte): Error code

H'11: Sum-check error

H'29: Block number error (the specified block number is incorrect.)

H'51: Erasure error (an error occurred during erasure.)

On receiving the command with H'FF as the block number, the boot program stops erasure

processing and waits for the next programming/erasure selection command.

Command H'58

Size

Block number

SUM

ï£§ Command H'58 (1 byte): Erasure of a block

ï£§ Size (1 byte): The number of characters in the block number field (fixed at 1)

ï£§ Block number (1 byte): H'FF (erasure terminating code)

ï£§ SUM (1 byte): Checksum

Response

H'06

ï£§ Response H'06 (1 byte): ACK code to indicate response to the request for termination of

erasure

To perform erasure again after having issued the command with the block number specified as

H'FF, execute the process from the selection of erasure.

â¢ Memory read

In response to the memory read command, the boot program returns the data from the specified

address.

Command

H'52

Size

Amount to read

Area

First address for reading

SUM

ï£§ Command H'52 (1 byte): Memory read

ï£§ Size (1 byte): The total length of the area, address for reading, and amount to read fields

(fixed value of 9)

Rev. 4.00 Jul. 25, 2008 Page 650 of 750

REJ09B0243-0400

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