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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M50FLW040A датащи(PDF) 45 Page - STMicroelectronics |
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M50FLW040A датащи(HTML) 45 Page - STMicroelectronics |
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45 / 52 page  45/52 M50FLW040A, M50FLW040B Figure 23. Double/Quadruple Byte Program Flowchart and Pseudo code (FWH Mode Only) Note: 1. A Status check of SR3 (VPP Invalid) and SR4 (Program Error) can be made after each program operation by following the correct command sequence. 2. If an error is found, the Status Register must be cleared before further Program/Erase operations. 3. A0 and/or A1 are treated as Don’t Care (A0 for Double Byte Program and A1-A0 for Quadruple Byte Program). For Double Byte Program: Starting at the Start Address, the first data Byte is programmed at the even address, and the second at the odd address. For Quadruple Byte Program: Starting at the Start Address, the first data Byte is programmed at the address that has A1-A0 at 00, the second at the address that has A1-A0 at 01, the third at the address that has A1-A0 at 10, and the fourth at the address that has A1-A0 at 11. AI08423B Read Status Register YES NO SR7 = 1 YES NO SR3 = 0 NO SR4 = 0 VPP Invalid Error (1, 2) Program Error (1, 2) Double/Quadruple Byte Program command: – write 40h or 10h – write Start Address and 2/4 Data Bytes (3) (memory enters read status state after the Double/Quadruple Byte Program command) do: – Read Status Register – If SR7=0 and a Program/Erase Suspend command has been executed – SR7 is set to 1 – Enter suspend program loop If SR3 = 1, VPP invalid error: – error handler If SR4 = 1, Program error: – error handler Suspend Suspend Loop NO YES Write 40h or 10h Start Write Start Address and 2/4 Data Bytes (3) YES End YES NO SR1 = 0 Program to Protected Block Error (1, 2) If SR1 = 1, Program to protected block error: – error handler |
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