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H8SX/1663R 데이터시트(PDF) 1225 Page - Renesas Technology Corp

부품명 H8SX/1663R
상세설명  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

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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
ACK
Repeat
Figure 25.28 Erasure Sequence



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