DSPIC33FJ12GP201_1 Datasheet, PDF (138/242 Pages) Microchip Technology – High-Performance, 16-Bit Digital Signal Controllers

dsPIC33FJ12GP201/202
The SPI module generates an interrupt indicating com-
pletion of a byte or word transfer, as well as a separate
interrupt for all SPI error conditions.
FIGURE 14-1:
SPI MODULE BLOCK DIAGRAM
SCKx
SSx
SDOx
SDIx
Sync
Control
Control
Clock
Select
Edge
Shift Control
bit 0
SPIxSR
Transfer
Transfer
1:1 to 1:8
Secondary
Prescaler
1:1/4/16/64
Primary
FCY
Prescaler
SPIxCON1<1:0>
SPIxCON1<4:2>
Enable
Master Clock
SPIxRXB SPIxTXB
SPIxBUF
Read SPIxBUF
Write SPIxBUF
16
Internal Data Bus
DS70264B-page 136
Preliminary
© 2007 Microchip Technology Inc.