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ST10F272Z2 Datasheet(PDF) 43 Page - STMicroelectronics |
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ST10F272Z2 Datasheet(HTML) 43 Page - STMicroelectronics |
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43 / 189 page  ST10F272Z2 Internal Flash memory 43/189 Suspend and resume Word Program, Double Word Program, and Sector Erase operations can be suspended in the following way: FCR0H |= 0x4000; /*Set SUSP in FCR0H*/ Then the operation can be resumed in the following way: FCR0H |= 0x0800; /*Set SER in FCR0H*/ FCR0H |= 0x8000; /*Operation resume*/ Before resuming a suspended Erase, FCR1H/FCR1L must be read to check if the Erase is already completed (FCR1H = FCR1L = 0x0000 if Erase is complete). Original setup of Select Operation bits in FCR0H/L must be restored before the operation resume, otherwise the operation is aborted and bit RESER of FER is set. Erase suspend, program and resume A Sector Erase operation can be suspended in order to program (Word or Double Word) another Sector. Example: Sector Erase of sector B0F1 of IFLASH Module. FCR0H |= 0x0800; /*Set SER in FCR0H*/ FCR1L |= 0x0002; /*Set B0F1*/ FCR0H |= 0x8000; /*Operation start*/ Example: Sector Erase Suspend. FCR0H |= 0x4000; /*Set SUSP in FCR0H*/ do /*Loop to wait for LOCK=0 and WMS=0*/ {tmp1 = FCR0L; tmp2 = FCR0H; } while ((tmp1 && 0x0010) || (tmp2 && 0x8000)); Example: Word Program of data 0x5555AAAA at address 0x045554 in IFLASH module. FCR0H &= 0xBFFF; /*Rst SUSP in FCR0H*/ FCR0H|= 0x2000;/*Set WPG in FCR0H*/ FARL = 0x5554; /*Load Add in FARL*/ FARH = 0x0004; /*Load Add in FARH*/ FDR0L = 0xAAAA; /*Load Data in FDR0L*/ FDR0H = 0x5555; /*Load Data in FDR0H*/ FCR0H |= 0x8000; /*Operation start*/ Once the Program operation is finished, the Erase operation can be resumed in the following way: FCR0H|= 0x0800;/*Set SER in FCR0H*/ FCR0H|= 0x8000;/*Operation resume*/ Notice that during the Program Operation in Erase suspend, bits SER and SUSP are low. A Word or Double Word Program during Erase Suspend cannot be suspended. In summary: |
Similar Part No. - ST10F272Z2_08 |
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Similar Description - ST10F272Z2_08 |
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