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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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W49V002FAQ датащи(PDF) 22 Page - Winbond |
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W49V002FAQ датащи(HTML) 22 Page - Winbond |
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22 / 32 page  W49V002FA - 22 - TIMING WAVEFORMS FOR FWH INTERFACE MODE Read Cycle Timing Diagram TCYC FWH4 #RESET FWH[3:0] Start FWH Read IDSEL CLK TAR Next Start 1 Clock 2 Clocks 1 Clock A[15:12] Address Sync TAR 1111b Tri-State 0000b TKQ THD TSU A[11:8] A[7:4] 0000b] Data out 2 Clocks D[7:4] Data D[3:0] 0000b THD TSU Load Address in 7 Clocks A[3:0] M Size XXXXb XA[22]XXb XXA[17:16] 1 Clock 1 Clock 0000b 1101b Note: When A22 = high, the host will read the BIOS code from the FWH device. While A22 = low, the host will read the GPI (Add = FFBC0100) or Product ID (Add = FFBC0000/FFBC0001) from the FWH device Write Cycle Timing Diagram TCYC FWH4 #RESET FWH[3:0] Start FWH Write IDSEL CLK TAR Next Start 1 Clock 2 Clocks 1 Clock A[15:12] Load Data in 2 Clocks D[7:4] Address Sync TAR Data 1111b Tri-State 0000b THD TSU A[11:8] A[7:4] 0000b D[3:0] 0000b Load Address in 7 Clocks A[3:0] M Size XXXXb XXXXb XXA[17:16]b 1 Clock 1 Clock 0000b 1110b |
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