PIC18LF24K Datasheet, PDF (357/594 Pages) –

FIGURE 26-14: I²C SLAVE, 7-BIT ADDRESS, RECEPTION (SEN = 0, AHEN = 0, DHEN = 0)
SDA
SCL
S
Receiving Address
A7 A6 A5 A4 A3 A2 A1
ACK
From Slave to Master
Bus Master sends
Stop condition
Receiving Data
Receiving Data
ACK = 1
D7 D6 D5 D4 D3 D2 D1 D0 ACK D7 D6 D5 D4 D3 D2 D1 D0
1 2 34 5 67 891 2 34 5 67 8 91 2 34 5 67 89
P
SSPxIF
BF
SSPOV
Cleared by software
SSPxBUF is read
Cleared by software
First byte
of data is
available
in SSPxBUF
SSPOV set because
SSPxBUF is still full.
ACK is not sent.
SSPxIF set on 9th
falling edge of
SCL