Datasheet

PIC18(L)F2X/45K50
DS30684A-page 222  2012 Microchip Technology Inc.
FIGURE 16-9: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 0)
FIGURE 16-10: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 1)
SCK
(CKP = 1
SCK
(CKP = 0
Input
Sample
SDI
bit 7
SDO bit 7
bit 6
bit 5 bit 4
bit 3
bit 2
bit 1 bit 0
SSPIF
Interrupt
CKE = 0)
CKE = 0)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SS
Flag
Optional
bit 0
detection active
Write Collision
Valid
SCK
(CKP = 1
SCK
(CKP = 0
Input
Sample
SDI
bit 7
bit 0
SDO bit 7
bit 6
bit 5 bit 4
bit 3 bit 2
bit 1 bit 0
SSPIF
Interrupt
CKE = 1)
CKE = 1)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SS
Flag
Not Optional
Write Collision
detection active
Valid