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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HCS08 датащи(PDF) 52 Page - NXP Semiconductors |
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HCS08 датащи(HTML) 52 Page - NXP Semiconductors |
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52 / 316 page  Chapter 4 Memory MC9S08SG8 MCU Series Data Sheet, Rev. 8 52 Freescale Semiconductor The first byte of a series of sequential bytes being programmed in burst mode will take the same amount of time to program as a byte programmed in standard mode. Subsequent bytes will program in the burst program time provided that the conditions above are met. In the case the next sequential address is the beginning of a new row, the program time for that byte will be the standard time instead of the burst time. This is because the high voltage to the array must be disabled and then enabled again. If a new burst command has not been queued before the current command completes, then the charge pump will be disabled and high voltage removed from the array. Figure 4-3. FLASH Burst Program Flowchart 1 0 FCBEF ? START WRITE TO FLASH TO BUFFER ADDRESS AND DATA WRITE COMMAND (0x25) TO FCMD NO YES FPVIO OR WRITE 1 TO FCBEF TO LAUNCH COMMAND AND CLEAR FCBEF (Note 2) NO YES NEW BURST COMMAND ? 1 0 FCCF ? ERROR EXIT DONE Note 2: Wait at least four bus cycles before 1 0 FACCERR ? CLEAR ERROR FACCERR ? Note 1: Required only once after reset. WRITE TO FCDIV (Note 1) checking FCBEF or FCCF. FLASH BURST PROGRAM FLOW |
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