PIC16F/LF1946/47
FIGURE 23-7:
SPI DAISY-CHAIN CONNECTION
SCK
SCK
SPI Master
SDOx
SDIx
SDIx
SDOx
SSx
SPI Slave
#1
General I/O
SCK
SDIx
SDOx
SSx
SPI Slave
#2
SCK
SDIx
SDOx
SSx
SPI Slave
#3
FIGURE 23-8:
SLAVE SELECT SYNCHRONOUS WAVEFORM
SSx
SCKx
(CKP = 0
CKE = 0)
SCKx
(CKP = 1
CKE = 0)
Write to
SSPxBUF
Shift register SSPxSR
and bit count are reset
SSPxBUF to
SSPxSR
bit 6
bit 6
bit 7
bit 7
bit 0
SDOx
SDIx
bit 7
bit 0
bit 7
Input
Sample
SSPxIF
Interrupt
Flag
SSPxSR to
SSPxBUF
2010 Microchip Technology Inc.
Preliminary
DS41414A-page 243