PIC18F4539 Datasheet, PDF (134/322 Pages) Microchip Technology – Enhanced FLASH Microcontrollers with Single Phase Induction Motor Control Kernel

PIC18FXX39
FIGURE 16-5:
SS
Optional
SCK
(CKP = 0
CKE = 0)
SCK
(CKP = 1
CKE = 0)
Write to
SSPBUF
SDO
SDI
(SMP = 0)
Input
Sample
(SMP = 0)
SSPIF
Interrupt
Flag
SSPSR to
SSPBUF
SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 0)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
bit7
bit0
Next Q4 cycle
after Q2↓
FIGURE 16-6:
SS
Not Optional
SCK
(CKP = 0
CKE = 1)
SCK
(CKP = 1
CKE = 1)
Write to
SSPBUF
SDO
SDI
(SMP = 0)
Input
Sample
(SMP = 0)
SSPIF
Interrupt
Flag
SSPSR to
SSPBUF
SPI MODE WAVEFORM (SLAVE MODE WITH CKE = 1)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
bit7
bit0
Next Q4 cycle
after Q2↓
DS30485A-page 132
Preliminary
 2002 Microchip Technology Inc.