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OPTION_REG Datasheet(PDF) 164 Page - Microchip Technology |
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OPTION_REG Datasheet(HTML) 164 Page - Microchip Technology |
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164 / 222 page  FIGURE 27-14: I2C SLAVE, 10-BIT ADDRESS, TRANSMISSION (SEN = 0, AHEN = 0, DHEN = 0) Receiving Address ACK Receiving Second Address Byte Sr Receive First Address Byte ACK Transmitting Data Byte 1 1 1 1 0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 1 1 1 1 0 A9 A8 D7 D6 D5 D4 D3 D2 D1 D0 SDA SCL SSPIF BF UA CKP R/W D/A 1 234 5 678 9 1 2 345 67 89 1 23 4 5 67 89 1 23 4 5 6 78 9 ACK = 1 P Master sends Stop condition Master sends not ACK Master sends Restart event ACK R/W = 0 S Cleared by software After SSPADD is updated, UA is cleared and SCL is released High address is loaded Received address is Data to transmit is Set by software Indicates an address When R/W = 1; R/W is copied from the Set by hardware UA indicates SSPADD SSPBUF loaded with received address must be updated has been received loaded into SSPBUF releases SCL Masters not ACK is copied matching address byte CKP is cleared on 9th falling edge of SCLx read from SSPBUF back into SSPADD ACKSTAT Set by hardware |
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