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DM163006 Datasheet(PDF) 161 Page - Microchip Technology |
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DM163006 Datasheet(HTML) 161 Page - Microchip Technology |
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161 / 320 page  2001 Microchip Technology Inc. Advance Information DS39541A-page 161 PIC18C601/801 FIGURE 15-7: I2C SLAVE MODE WAVEFORMS FOR RECEPTION (7-BIT ADDRESS) FIGURE 15-8: I2C SLAVE MODE WAVEFORMS FOR TRANSMISSION (7-BIT ADDRESS) P 9 8 7 6 5 D0 D1 D2 D3 D4 D5 D6 D7 S A7 A6 A5 A4 A3 A2 A1 SDA SCL 1 2 3 456 78 9 12 34 56 7 89 12 3 4 Bus Master Terminates Transfer Bit SSPOV is set because the SSPBUF register is still full. Cleared in software SSPBUF register is read ACK Receiving Data Receiving Data D0 D1 D2 D3 D4 D5 D6 D7 ACK R/W = 0 Receiving Address SSPIF BF SSPOV Not ACK ACK is not sent. SDA SCL SSPIF BF CKP A7 A6 A5 A4 A3 A2 A1 ACK D7 D6 D5 D4 D3 D2 D1 D0 Not ACK Transmitting Data R/W = 1 Receiving Address 1 2 3 4 56 789 123 4 5 67 8 9 P Cleared in software SSPBUF is written in software From SSP Interrupt Service Routine Set bit after writing to SSPBUF S Data in Sampled SCL held low while CPU responds to SSPIF (the SSPBUF must be written to before the CKP bit can be set) R/W = 0 |
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