SH7125_08 Datasheet, PDF(662/774 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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SH7125_08 Datasheet, PDF (662/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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Section 17 Flash Memory

(11) Transition to the programming/erasure state

In response to the transition to the programming/erasure state command, the boot program

transfers the erasing program and runs it to erase any data in the user MAT. On completion of this

erasure, the boot program returns the ACK code and enters the programming/erasure state.

Before sending the programming selection command and data for programming, the host must

select the device, clock mode, and new bit rate for the LSI by issuing the device selection

command, clock-mode selection command, new-bit-rate selection command, and then initiate the

transition to the programming/erasure state by sending the corresponding command to the boot

program.

Command H'40

ï£§ Command H'40 (1 byte): Transition to programming/erasure state

Response

H'06

ï£§ Response H'06 (1 byte): Response to the transition-to-programming/erasure state command

This is returned as ACK when erasure of the user MAT has succeeded after transfer of the

erasure program.

Error

response

H'C0

H'51

ï£§ Error response H'C0 (1 byte): Error response to the transition-to-programming/erasure state

command

ï£§ ERROR (1 byte): Error code

H'51: Erasure error (Erasure did not succeed because of an error.)

Rev. 4.00 Jul. 25, 2008 Page 642 of 750

REJ09B0243-0400

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