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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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NAND04GA3C2A датащи(PDF) 26 Page - STMicroelectronics |
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NAND04GA3C2A датащи(HTML) 26 Page - STMicroelectronics |
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26 / 51 page  6 Device operations NAND04GA3C2A, NAND04GW3C2A 26/51 6.11 Read Electronic Signature The device contains a Manufacturer Code and Device Code. To read these codes three steps are required: 1. One Bus Write cycle to issue the Read Electronic Signature command (90h) 2. One Bus Write cycle to input the address (00h) 3. Four Bus Read Cycles to sequentially output the data (as shown in Table 10: Electronic Signature). Table 9. Status Register Bits Bit Name Logic Level Definition SR7 Write Protection '1' Not Protected '0' Protected SR6(1) Program/ Erase/ Read Controller '1' P/E/R C inactive, device ready '0' P/E/R C active, device busy Cache Ready/Busy '1' Cache Register ready (Cache Read only) '0' Cache Register busy (Cache Read only) SR5 Program/ Erase/ Read Controller(2) '1' P/E/R C inactive '0' P/E/R C active SR4, SR3, SR2, SR1 Reserved Don’t Care SR0(1) Generic Error ‘1’ Error – operation failed ‘0’ No Error – operation successful 1. The SR6 bit and SR0 bit have a different meaning during Cache Read operations. 2. Only valid for Cache Read operations, for other operations it is same as SR6. Table 10. Electronic Signature Part Number Byte/Word 1 Byte/Word 2 Byte 3 (see Table 11) Byte 4 (see Table 12) Manufacturer Code Device code NAND04GA3C2A 20h DCh 84h 25h NAND04GW3C2A 20h DCh 84h |
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