TMS320C6000 McBSP Interface to an ST-BUS Device (Rev. B)
This document describes how the multichannel buffered serial ports (McBSPs) in the Texas Instruments TMS320C6000™ digital signal processor (DSP) are used to communicate to a single-rate Serial Telecom (ST)-BUS-compliant device. The McBSP receives the framing signal, clock, and data from the ST-BUS™ device and processes them to generate internal frame syncs and clocks for correct data reception. The highly programmable features of the McBSP make it easy to interface to ST-BUS signals. This application report focuses on the single rate ST-BUS, wherein the ST-BUS system clock and the data rate (number of bits per second) are equal. Hence, the name "single rate", which applies only to a 2.048 MHz system clock. The usage of McBSP registers and sample code to perform the above function are described in this document.
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