PIC32MX440F256H-80I Datasheet, PDF (386/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
FIGURE 17-1:
SPI MODULE BLOCK DIAGRAM
Internal
Data Bus
Read
SPIxBUF
Write
SPIxRXB
SPIxTXB
Transmit
Registers share address SPIxBUF
SDIx
SDOx
SSx/FSYNC
Receive
SPIxSR
bit 0
Slave Select
and Frame
Sync Control
Shift
Control
Clock
Control
Edge
Select
SCKx
Baud Rate
Generator
PBCLK
Enable Master Clock
Note: Access SPIxTXB and SPIxRXB registers via SPIxBUF register.
DS61143E-page 384
Preliminary
© 2008 Microchip Technology Inc.