Microchip Technology DM163025-1 Data Sheet
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2012 Microchip Technology Inc.
DS30684A-page 221
PIC18(L)F2X/45K50
FIGURE 16-7:
SPI DAISY-CHAIN CONNECTION
FIGURE 16-8:
SLAVE SELECT SYNCHRONOUS WAVEFORM
SPI Master
SCLK
SDO
SDI
General I/O
SCLK
SDI
SDO
SS
SDI
SDO
SS
SPI Slave
#1
SCLK
SDI
SDO
SS
SDI
SDO
SS
SPI Slave
#2
SCLK
SDI
SDO
SS
SDI
SDO
SS
SPI Slave
#3
SCK
(CKP = 1
SCK
(CKP = 0
Input
Sample
SDI
bit 7
SDO
bit 7
bit 6
bit 7
SSPIF
Interrupt
CKE = 0)
CKE = 0)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SS
Flag
bit 0
bit 7
bit 0
bit 6
SSPxBUF to
SSPxSR
Shift register SSPxSR
and bit count are reset