Flexible adaptations of short pulse width modulation (pwm) code (spc) communication

Abstract

The described techniques enhance the conventional SPC communication protocol in various ways to provide further flexibility for various applications while improving performance. This includes the use of an alternative trigger signal that may encode a time base reference of a primary device as well as state data (e.g. an address, configuration data, etc.), which is transmitted to one or more secondary devices. This also includes the use of an end-of-frame (EoF) signal that may be introduced into an SPC data frame to enable the use of a variable data frame length. Still further, techniques are described for the use of another alternate trigger signal that includes a wake up signal that is recognized by a receiving device, which causes the receiving device to transition from a low power mode of operation to a communicating mode of operation.