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OPTION_REG Datasheet(PDF) 163 Page - Microchip Technology |
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OPTION_REG Datasheet(HTML) 163 Page - Microchip Technology |
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163 / 222 page  FIGURE 27-13: I2C SLAVE, 10-BIT ADDRESS, RECEPTION (SEN = 0, AHEN = 1, DHEN = 0) Receive First Address Byte UA Receive Second Address Byte UA Receive Data ACK Receive Data 1 1 1 1 0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 SDA SCL SSPIF BF ACKDT UA CKP ACKTIM 1 2 3 4 5 678 9 S ACK ACK 12 3 4 56 78 9 12 345 6 7 8 91 2 SSPBUF is read from Received data SSPBUF can be read anytime before the next received byte Cleared by software falling edge of SCL not allowed until 9th Update to SSPADD is Set CKP with software releases SCL SCL clears UA and releases Update of SSPADD, Set by hardware on 9th falling edge Slave software clears ACKDT to ACK the received byte If when AHEN = 1; on the 8th falling edge of SCL of an address byte, CKP is cleared ACKTIM is set by hardware on 8th falling edge of SCL Cleared by software R/W = 0 |
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