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MCP19124 Datasheet(PDF) 175 Page - Microchip Technology |
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MCP19124 Datasheet(HTML) 175 Page - Microchip Technology |
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175 / 236 page  FIGURE 28-14: 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 D5D4D3D2 D1 D0 SDA SCL SSPIF BF UA CKP R/W D/A 12 3 4 5 67 8 9 1 2 34 5 67 8 9 12 3 4 5 67 8 9 1 2 34 5 6 78 9 ACK = 1 P ACK R/W = 0 S Set by hardware ACKSTAT Set by hardware Master sends Restart event Master sends not ACK Master sends Stop condition Cleared by software SSPBUF loaded with received address UA indicates SSPADD must be updated After SSPADD is updated. UA is cleared and SCL is released Received address is read from SSPBUF High address is loaded back into SSPADD R/W is copied from the matching address byte Data to transmit is loaded into SSPBUF Set by software releases SCL Master’s not ACK is copied Indicates an address has been received When R/W = 1: CKP is cleared on 9th falling edge of SCLx |
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