Datasheet

PIC16C77X
DS30275B-page 68 Advance Information  1999-2013 Microchip Technology Inc.
FIGURE 8-15: I
2
C SLAVE-RECEIVER (10-BIT ADDRESS)
SDA SCL SSPIF BF (SSPSTAT<0>)
S
1 234 56 7 89 1 2345 67 89 1 2345 789
P
1 1 1 1 0 A9A8 A7 A6 A5 A4 A3A2A1 A0 D7D6D5D4D3 D1D0
Receive Data Byte
ACK
R/W = 0
ACK
Receive First Byte of Address
Cleared in software
Bus Master
terminates transfer
D2
6
(PIR1<3>)
Receive Second Byte of Address
Cleared by hardware when SSPADD is updated with low byte of address.
UA (SSPSTAT<1>)
Clock is held low until update of SSPADD has taken place
UA is set indicating that the SSPADD needs to be updated
UA is set indicating that SSPADD needs to be updated
SSPBUF is written with contents of SSPSR
Dummy read of SSPBUF to clear BF flag
ACK
R/W = 1
Cleared in software
Dummy read of SSPBUF to clear BF flag
Read of SSPBUF clears BF flag
Cleared by hardware when SSPADD is updated with high byte of address.
774.book Page 68 Tuesday, January 29, 2013 12:02 PM