Datasheet

© 2009 Microchip Technology Inc. DS39632E-page 215
PIC18F2455/2550/4455/4550
FIGURE 19-8: I
2
C™ SLAVE MODE TIMING WITH SEN = 0 (RECEPTION, 7-BIT ADDRESS)
SDA SCL SSPIF BF (SSPSTAT<0>) SSPOV (SSPCON1<6>)
S
1 2 34 567 891 2 345 67 89 1 23 45 7 89
P
A7
A6 A5 A4 A3 A2
A1
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D1 D0
ACK
Receiving Data
ACK
Receiving Data
R/W
= 0
ACK
Receiving Address
Cleared in software SSPBUF is read
Bus master terminates transfer
SSPOV is set because SSPBUF is still full. ACK is not sent.
D2
6
(PIR1<3>)
CKP
(CKP does not reset to ‘0’ when SEN = 0)