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Microchip Technology MA160014 Data Sheet

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 2010-2012 Microchip Technology Inc.
DS41412F-page 219
PIC18(L)F2X/4XK22
FIGURE 15-7:
SPI DAISY-CHAIN CONNECTION
FIGURE 15-8:
SLAVE SELECT SYNCHRONOUS WAVEFORM
SPI Master
SCLK
SDOx
SDIx
General I/O
SCLK
SDIx
SDOx
SSx
SPI Slave
#1
SCLK
SDIx
SDOx
SSx
SPI Slave
#2
SCLK
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