QUALCOMM Incorporated
TIMED-TRIGGER SYNCHRONIZATION ENHANCEMENT

Abstract:

Systems, methods, and apparatus improve synchronization of trigger timing when triggers are configured over a serial bus. A data communication apparatus has an interface circuit that couples the data communication apparatus to a serial bus and is configured to receive a clock signal from the serial bus, a plurality of counters configured to count pulses in the clock signal, and a controller configured to receive a datagram from the serial bus, the datagram including a plurality of data bytes corresponding to the plurality of counters, configure each of the plurality of counters with a count value based on content of a corresponding data byte when the corresponding data byte is received from the datagram, cause each of the counters to refrain from counting until all of the counters have been configured with count values, and actuate a trigger when a counter associated with the trigger has counted to zero.