Calibrating return time includes determining clock calibration information
based on clock signals local to a master device and return clock signals
corresponding to each of at least two slave devices, storing clock
calibration information with respect to each of the slave devices with
which the master device will communicate using a bus, and, after the clock
calibration information has been stored, resynchronizing data signals that
are received from each of the slave devices based on the corresponding
stored clock calibration information.
