SIGNAL ALIGNMENT CIRCUITRY, DATA HANDLING CIRCUITRY, SYSTEM AND IC CHIP

摘要

PROBLEM TO BE SOLVED: To provide signal alignment circuitry that enables synchronization within each channel and between channels.SOLUTION: The signal alignment circuitry has: phase rotation circuitry connected to receive input clock signals and operable to generate output clock signals from the input clock signals; and control circuitry operable to control an amount of phase rotation applied by the phase rotation circuitry so as to carry out a plurality of alignment operations. The alignment operations include: a first operation including rotating any output clock signal(s) relative to the other output clock signal(s) so as to bring a phase relationship between the output clock signals or derived clock signals derived from the output clock signals into a given phase relationship; and a second operation including rotating all of the output clock signals together so as to bring a phase relationship between the output clock signals or the derived clock signals and the input clock signals or an external reference signal into a given phase relationship.