Microchip Technology AC244045 Data Sheet
PIC16(L)F1825/1829
DS41440C-page 250
2010-2012 Microchip Technology Inc.
FIGURE 25-9:
SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 0)
FIGURE 25-10:
SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 1)
SCKx
(CKP = 1
SCKx
(CKP = 0
Input
Sample
Sample
SDIx
bit 7
SDOx
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
SSPxIF
Interrupt
CKE = 0)
CKE = 0)
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SSx
Flag
Optional
bit 0
detection active
Write Collision
Valid
SCKx
(CKP = 1
SCKx
(CKP = 0
Input
Sample
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
CKE = 1)
CKE = 1)
Write to
SSPxBUF
Write to
SSPxBUF
SSPxSR to
SSPxBUF
SSx
Flag
Not Optional
Write Collision
detection active
detection active
Valid