Datasheet

 2001-2013 Microchip Technology Inc. DS39582C-page 87
PIC16F87XA
FIGURE 9-9: I
2
C SLAVE MODE TIMING (TRANSMISSION, 7-BIT ADDRESS)
SDA SCL SSPIF (PIR1<3>) BF (SSPSTAT<0>)
A6
A5
A4 A3
A2
A1
D6
D5
D4
D3
D2
D1
D0
1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9
SSPBUF is written in software
Cleared in software
SCL held low while CPU responds to SSPIF
From SSPIF ISR
Data in sampled
S
ACK
Transmitting Data
R/W =
1
ACK
Receiving Address
A7 D7
9 1
D6
D5
D4
D3
D2
D1
D0
2 3 4 5 6 7 8 9
SSPBUF is written in software
Cleared in software
From SSPIF ISR
Transmitting Data
D7
1
CKP
P
ACK
CKP is set in software
CKP is set in software