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Microchip Technology MCU PIC PIC18F87K22-I/PTRSL TQFP-80 MCP PIC18F87K22-I/PTRSL Data Sheet

Product codes
PIC18F87K22-I/PTRSL
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PIC18F87K22 FAMILY
DS39960D-page 288
 2009-2011 Microchip Technology Inc.
FIGURE 21-5:
SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 
0
)      
FIGURE 21-6:
SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 1)      
SCKx
(CKP = 1
SCKx
(CKP = 0
Input
Sample
SDIx
bit 7
SDOx
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
SSPxIF
Interrupt 
(SMP = 0)
CKE = 0)
CKE = 0)
(SMP = 0)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SSx
Flag
Optional
Next Q4 Cycle
after Q2
 
bit 0
SCKx
(CKP = 1
SCKx
(CKP = 0
Input
Sample
SDIx
bit 7
bit 0
SDOx
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
SSPxIF
Interrupt 
(SMP = 0)
CKE = 1)
CKE = 1)
(SMP = 0)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SSx
Flag
Not Optional
Next Q4 Cycle
after Q2
