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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VS6724 датащи(PDF) 47 Page - STMicroelectronics |
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VS6724 датащи(HTML) 47 Page - STMicroelectronics |
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47 / 118 page  VS6724 Host communication - I²C control interface 47/118 As mentioned in the previous example, the read message is terminated with a negative acknowledge (A) from the master. Figure 35. 16-bit index, 8-bit data random index, single data read 3.3.4 Multiple location write For messages with more than 1 data byte the internal register index is automatically incremented for each byte of data output, making it possible to write data bytes to consecutive adjacent internal registers without having to send explicit indexes prior to sending each data byte. Figure 36. 16-bit index, 8-bit data multiple location write ‘0’ (Write) S DEV ADDR R/W A DATA A DATA A INDEX[7:0] INDEX[15:0] value, M INDEX[15:8] DATA DATA[7:0] DATA[7:0] Sr DEV ADDR R/W A ‘1’ (Read) P A Previous Index Value, K Index M No Data Write Data Read A = Acknowledge A = Negative Acknowledge S = START Condition Sr = repeated START P = STOP Condition From Slave to Master From Master to Slave ‘0’ (Write) S DEV ADDR R/W A DATA P A/A DATA A DATA A INDEX[7:0] DATA[7:0] INDEX[15:0] value, M DATA[7:0] INDEX[15:8] DATA A DATA[7:0] DATA[7:0] N Bytes of Data Previous Index Value, K Index M Index (M + N - 1) A = Acknowledge A = Negative acknowledge S = START condition Sr = repeated START P = STOP Condition From Slave to Master From Master to Slave |
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