H8SXSLASH1663M datasheet(1225/1504 Pages) RENESAS

データシートサーチシステム

H8SX/1663M データシート(PDF) 1225 Page - Renesas Technology Corp

部品番号	H8SX/1663M

部品情報	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1504 Pages

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メーカー	RENESAS [Renesas Technology Corp]

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1225 / 1504 page

Section 25 Flash Memory

Rev. 2.00 Sep. 24, 2008 Page 1193 of 1468

REJ09B0412-0200

• Erasure

Erasure is executed by the erasure selection and block erasure commands.

Firstly, erasure is selected by the erasure selection command and the boot program then erases

the specified block. The command should be repeatedly executed if two or more blocks are to

be erased. Sending a block erasure command from the host with the block number H'FF will

stop the erasure operating. On completion of erasing, the boot program will wait for selection

of programming or erasing.

The sequence for the erasure selection and block erasure commands is shown in figure 25.28.

Transfer of erasure

program

Host

Boot program

Preparation for erasure (H'48)

ACK

Erasure

Erasure (Erasure block number)

Erasure (H'FF)

ACK

Repeat

Figure 25.28 Erasure Sequence

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