Datasheet

PIC18F66K80 FAMILY
DS39977F-page 306  2010-2012 Microchip Technology Inc.
FIGURE 21-9: I
2
C™ SLAVE MODE TIMING WITH SEN = 0 AND ADMSK<5:1> = 01011
(RECEPTION, 7-BIT ADDRESS)
SDA SCL SSPIF (PIR1<3> or PIR3<7>) BF (SSPSTAT<0>) SSPOV (SSPCON1<6>)
S
12345678912345678912345 789
P
A7 A6 A5 X A3 X X D7D6D5D4D3D2D1 D0 D7D6D5D4D3 D1D0
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
CKP (SSPCON<4>)
(CKP does not reset to ‘0’ when SEN = 0)
Note 1: x = Don’t care (i.e., address bit can either be a ‘1’ or a ‘0’).
2: In this example, an address equal to A7.A6.A5.X.A3.X.X will be Acknowledged and cause an interrupt.