PIC16(L)F720/721
DS40001430E-page 138 2010-2013 Microchip Technology Inc.
FIGURE 17-2: SPI MODE BLOCK
DIAGRAM
Read Write
Internal
Data Bus
SDI
SDO
RA5/SS
SCK
SSPSR Reg
SSPBUF Reg
SSPM<3:0>
bit 0
Shift
Clock
SS
Control
Enable
Edge
Select
Clock Select
TMR2
F
OSC
Prescaler
4, 16, 64
TRISx
2
4
RA0/SS
SSSEL
Output
2
Edge
Select
bit 7
