H8SXSLASH1663M datasheet(1221/1504 Pages) RENESAS

1221 / 1504 page

Section 25 Flash Memory

Rev. 2.00 Sep. 24, 2008 Page 1189 of 1468

REJ09B0412-0200

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Transition to Programming/Erasing State

The boot program will transfer the erasing program, and erase the user MATs and user boot MATs

in that order. On completion of this erasure, ACK will be returned and will enter the

programming/erasing state.

The host should select the device code, clock mode, and new bit rate with device selection, clock-

mode selection, and new bit-rate selection commands, and then send the command for the

transition to programming/erasing state. These procedures should be carried out before sending of

the programming selection command or program data.

Command

H'40

• Command, H'40, (one byte): Transition to programming/erasing state

Response

H'06

• Response, H'06, (one byte): Response to transition to programming/erasing state

The boot program will send ACK when the user MAT and user boot MAT have been erased

by the transferred erasing program.

Error Response

H'C0

H'51

• Error response, H'C0, (one byte): Error response for user boot MAT blank check

• Error code, H'51, (one byte): Erasing error

An error occurred and erasure was not completed.

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Command Error

A command error will occur when a command is undefined, the order of commands is incorrect,

or a command is unacceptable. Issuing a clock-mode selection command before a device selection

or an inquiry command after the transition to programming/erasing state command, are examples.

Error Response

H'80

H'xx

• Error response, H'80, (one byte): Command error

• Command, H'xx, (one byte): Received command

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