Microchip Technology AC244049 Fiche De Données
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2010-2012 Microchip Technology Inc.
DS41440C-page 249
PIC16(L)F1825/1829
FIGURE 25-7:
SPI DAISY-CHAIN CONNECTION
FIGURE 25-8:
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