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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PC912XDP512F0MPVR 데이터시트(PDF) 1220 Page - Freescale Semiconductor, Inc |
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PC912XDP512F0MPVR 데이터시트(HTML) 1220 Page - Freescale Semiconductor, Inc |
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1220 / 1348 page  Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1) MC9S12XDP512 Data Sheet, Rev. 2.21 1222 Freescale Semiconductor 29.4.2.5 Mass Erase Command The mass erase operation will erase all addresses in a Flash block using an embedded algorithm. An example flow to execute the mass erase operation is shown in Figure 29-28. The mass erase command write sequence is as follows: 1. Write to a Flash block address to start the command write sequence for the mass erase command. The address and data written will be ignored. 2. Write the mass erase command, 0x41, to the FCMD register. 3. Clear the CBEIF flag in the FSTAT register by writing a 1 to CBEIF to launch the mass erase command. If a Flash block to be erased contains any protected area, the PVIOL flag in the FSTAT register will set and the mass erase command will not launch. Once the mass erase command has successfully launched, the CCIF flag in the FSTAT register will set after the mass erase operation has completed unless a new command write sequence has been buffered. |
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