Datasheet

PIC18F45J10 FAMILY
DS39682E-page 156 © 2009 Microchip Technology Inc.
FIGURE 16-5: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 0)
FIGURE 16-6: 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↓