Systems, methods, and apparatus for improving bus latency are described. A data communication method includes receiving a trigger actuation command from a bus master coupled to the serial bus, determining that a sequence is being executed in the slave device, and providing a trigger actuation signal corresponding to the trigger actuation command when execution of the sequence has been completed. A sequence initiation command may be received before the trigger actuation command, and the sequence may be initiated in response to the sequence initiation command. The trigger actuation command may be queued in a first queue, the sequence initiation command in may be queued in a second queue. Trigger actuation commands in the first queue may be associated with sequence initiation commands in the second queue. The sequence may be initiated in response to a sequence initiation command associated with the trigger actuation command corresponding to the trigger actuation signal.