Low latency data handoff using phase rotation and clock gapping

A system, comprising:

• a phase rotator configured to receive a read clock;
• a sampling device configured to obtain an incoming data stream;
• and
• a controller configured to:
• control the phase rotator to perform phase rotation of the read clock based on information-carrying level transitions in the incoming data stream;
• cause a gapped read clock and an inversion of the gapped read clock to be derived in accordance with the phase rotation, the gapped read clock being derived via gapping operations associated with the read clock;
• and
• output clock selection signals that enable the sampling device to selectively sample the incoming data stream using the gapped read clock and the inversion, thereby facilitating a data handoff between asynchronous clock domains.

A method, comprising:

• receiving, by a phase rotator, a read clock;
• obtaining, by a flip flop, an incoming data stream;
• controlling, by a controller, the phase rotator to perform phase rotation of the read clock based on information-carrying level transitions in the incoming data stream;
• causing, by the controller, a gapped read clock and an inversion of the gapped read clock to be derived in accordance with the phase rotation, the gapped read clock being derived via gapping operations associated with the read clock;
• and
• outputting, by the controller, clock selection signals that enable the flip flop to selectively sample the incoming data stream using the gapped read clock and the inversion, thereby facilitating a data handoff between asynchronous clock domains.