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STW5098T データシート(PDF) 50 Page - STMicroelectronics |
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STW5098T データシート(HTML) 50 Page - STMicroelectronics |
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50 / 85 page ![]() Control interface and master clock STw5098 50/85 6 Control interface and master clock Unless specified, the following description applies to both entities. 6.1 Control interface I2C mode Figure 5. Control interface I2C format Note: CMOD pin tied to GND Figure 6. Control interface: I2C format timing WRITE SINGLE BYTE START DEVICE ADDRESSREG n ADDRESS REG n DATA IN ACK ACK ACK STOP WRITE MULTI BYTE START DEVICE ADDRESSREG n ADDRESS REG n DATA IN ACK ACK ACK STOP REG n+m DATA IN ACK m+1 data bytes CURRENT ADDR START DEVICE ADDRESSCurrent REG DATA OUT ACK NO ACK STOP READ SINGLE BYTE CURRENT ADDR START DEVICE ADDRESSCurrent REG DATA OUT ACK NO ACK STOP READ MULTI BYTE Curr REG+m DATA OUT ACK ACK ACK m+1 data bytes START DEVICE ADDRESSREG n ADDRESS ACK ACK START DEVICE ADDRESS REG n DATA OUT ACK NO ACK STOP RANDOM ADDR READ SINGLE BYTE RANDOM ADDR READ MULTI BYTE START DEVICE ADDRESSREG n ADDRESS ACK ACK START DEVICE ADDRESS NO ACK STOP REG n+m DATA OUT ACK ACK m+1 data bytes REG n DATA OUT ACK 001 101AS1 001 101 AS1 001 101AS0 0011 01AS0 0011 01AS1 0 0110 1AS1 001 101AS0 001 101AS0 (STO) tSU (STA) tSU (STA) tHD (DAT) tSU tHIGH tBUF (DAT) tHD tF tR tLOW (STA) tHD P S P Sr P= STOP S = START Sr = START repeated SDA SCLK |
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