Datasheet

PIC16F72X/PIC16LF72X
DS41341E-page 172 © 2009 Microchip Technology Inc.
FIGURE 17-4: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 0 )
FIGURE 17-5: SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 1 )
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
(SMP = 0)
CKE = 0)
CKE = 0)
(SMP = 0)
Write to
SSPBUF
SSPSR to
SSPBUF
SS
Flag
Optional
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
(SMP = 0)
CKE = 1)
CKE = 1)
(SMP = 0)
Write to
SSPBUF
SSPSR to
SSPBUF
SS
Flag
Not Optional