Microchip Technology DM164130-2 Data Sheet
2010-2012 Microchip Technology Inc.
DS41414D-page 251
PIC16(L)F1946/47
FIGURE 24-7:
SPI DAISY-CHAIN CONNECTION
FIGURE 24-8:
SLAVE SELECT SYNCHRONOUS WAVEFORM
SPI Master
SCK
SDOx
SDIx
General I/O
SCK
SDIx
SDOx
SSx
SDIx
SDOx
SSx
SPI Slave
#1
SCK
SDIx
SDOx
SSx
SDIx
SDOx
SSx
SPI Slave
#2
SCK
SDIx
SDOx
SSx
SDIx
SDOx
SSx
SPI Slave
#3
SCKx
(CKP = 1
SCKx
(CKP = 0
Input
Sample
SDIx
bit 7
SDOx
bit 7
bit 6
bit 7
SSPxIF
Interrupt
CKE = 0)
CKE = 0)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SSx
Flag
bit 0
bit 7
bit 0
bit 6
SSPxBUF to
SSPxSR
Shift register SSPxSR
and bit count are reset