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PIC16F753 数据表(PDF) 31 Page - Microchip Technology |
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PIC16F753 数据表(HTML) 31 Page - Microchip Technology |
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31 / 230 page  2013-2015 Microchip Technology Inc. DS40001709C-page 31 PIC16F753/HV753 FIGURE 3-2: BLOCK WRITES TO 1K FLASH PROGRAM MEMORY FIGURE 3-3: FLASH PROGRAM MEMORY LONG WRITE CYCLE EXECUTION 14 14 14 14 Program Memory Buffer Register PMADRL<1:0> = 00 Buffer Register PMADRL<1:0> = 01 Buffer Register PMADRL<1:0> = 10 Buffer Register PMADRL<1:0> = 11 PMDATL PMDATH 75 07 0 6 8 First word of block to be written If at a new row to Flash automatically after this word is written are transferred Flash are erased, then four buffers sixteen words of Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 BSF PMCON1,WR Executed here INSTR (PC + 1) Executed here PC + 1 Flash INSTR PMDATH,PMDATL INSTR (PC+3) INSTR NOP Executed here Flash Flash PMWHLT WR bit Processor halted PM Write Time PMADRH,PMADRL PC + 3 PC + 4 INSTR (PC + 3) Executed here ADDR DATA Memory Location ignored read PC + 2 INSTR (PC+2) (INSTR (PC + 2) NOP Executed here (PC) (PC + 1) |
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