McBSP (spi)

Links:
1) https://en.wikipedia.org/wiki/Serial_Peripheral_Interface
2) http://www.interfacebus.com/mcbsp-multichannel-buffered-serial-port.html
3) KeyStone Architecture Multichannel Buffered Serial Port (McBSP) User's Guide
https://www.ti.com/lit/ug/spruhh0/spruhh0.pdf

TMS320F2833x,TMS320F2823x:
1) http://www.add.ece.ufl.edu/4511/references/McBSP%20Tutorial.pdf

TMS320x281x:
1) https://www.ti.com/lit/ug/spru061d/spru061d.pdf

TMS320C6000:
1) https://www.ti.com/lit/ug/spru580g/spru580g.pdf
2) TMS320C6000 McBSP Interface to SPI ROM https://www.ti.com/lit/an/spra487c/spra487c.pdf