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MCP19124 Datasheet(PDF) 167 Page - Microchip Technology |
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MCP19124 Datasheet(HTML) 167 Page - Microchip Technology |
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167 / 236 page  FIGURE 28-9: I2C SLAVE, 7-BIT ADDRESS, RECEPTION (SEN = 1, AHEN = 1, DHEN = 1) Receiving Address Receive Data Receive Data A7 A6 A5 A4 A3 A2 A1 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 SDA SCL SSPIF BF ACKDT CKP S P S 12 3 4 56 7 8 9 12 3 45 6 7 8 9 12 34 56 7 8 9 Cleared by software Slave software clears ACKDT to ACK the received byte P Master sends Stop condition ACKTIM R/W = 0 ACK Master releases SDA to slave for ACK sequence ACK Received address is loaded into SSPBUF Received data is available on SSPBUF SSPBUF can be read any time before next byte is loaded No interrupt after if not ACK from Slave Slave sends not ACK When AHEN = 1: on the 8th falling edge of SCL of an address byte, CKP is cleared When DHEN = 1: on the 8th falling edge of SCL of a received data byte, CKP is cleared Set by software, release SCL CKP is not cleared if not ACK ACKTIM is set by hardware on 8th falling edge of SCL ACKTIM is cleared by hardware on 9th rising edge of SCL |
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