Texas Instruments TMS320C28x Reference Manual page 8

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Trademarks
320 Hotline On-line is a trademark of Texas Instruments Incorporated.
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C2xLP, C27x, C28x, TMS320C28x, and XDS510 are trademarks of Texas Instruments Incorporated.
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TMS320C28x Serial Communication Interface (SCI) Reference Guide (lit-
erature number SPRU051) describes the SCI that is a two-wire asyn-
chronous serial port, commonly known as a UART. The SCI modules
support digital communications between the CPU and other asynchro-
nous peripherals that use the standard non-return-to-zero (NRZ) format.
TMS320C28x Serial Peripheral Interface (SPI) Reference Guide (literature
number SPRU059) describes the SPI − a high-speed synchronous serial
input/output (I/O) port that allows a serial bit stream of programmed
length (one to sixteen bits) to be shifted into and out of the device at a
programmed bit−transfer rate. The SPI is used for communications be-
tween the DSP controller and external peripherals or another controller.
TMS320C28x System Control and Interrupts Reference Guide (literature
number SPRU078) describes the various interrupts and system control
features of the 28x digital signal processors (DSPs).