Select SPI Registers
Configuration Control
SpixRegs.SPICCR
Reset, Clock Polarity, Loopback, Character Length
Operation Control
SpixRegs.SPICTL
Overrun Interrupt Enable, Clock Phase, Interrupt Enable
Master / Slave Transmit enable
Status
SpixRegs.SPIST
RX Overrun Flag, Interrupt Flag, TX Buffer Full Flag
FIFO Transmit
SpixRegs.SPIFFTX
FIFO Receive
SpixRegs.SPIFFRX
FIFO Enable, FIFO Reset
FIFO Over-flow flag, Over-flow Clear
Number of Words in FIFO (FIFO Status)
FIFO Interrupt Enable, Interrupt Status, Interrupt Clear
FIFO Interrupt Level (Number of Words in FIFO)
Note: refer to the reference guide for a complete listing of registers
SPI Summary
Synchronous serial communications
Two wire transmit or receive (half duplex)
Three wire transmit and receive (full duplex)
Software configurable as master or slave
C28x provides clock signal in master mode
Data length programmable from 1-16 bits
125 different programmable baud rates
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