Invention Grant
- Patent Title: Techniques for alignment of parallel signals
- Patent Title (中): 平行信号对准技术
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Application No.: US13759869Application Date: 2013-02-05
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Publication No.: US09240804B2Publication Date: 2016-01-19
- Inventor: Curt Wortman , David Mendel
- Applicant: Altera Corporation
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agent Steven J. Cahill
- Main IPC: H04L7/00
- IPC: H04L7/00 ; H03M9/00 ; H04L25/14 ; H04J3/04 ; H04J3/06

Abstract:
Receiver circuits in serial lanes each generate a synchronous clock signal that is aligned with a master clock signal to allow synchronous transfer of data onto the master clock domain without corruption. A serial-to-parallel converter circuit in each receiver circuit converts a serial data signal into parallel data signals in response to one of the synchronous clock signals. Phase detection circuitry generates an indication of a phase shift based on a phase offset between the synchronous and master clock signals. A clock signal generation circuit provides an adjustment to a phase of the synchronous clock signal based on the indication of the phase shift. The serial-to-parallel converter circuit adjusts positions of bits indicated by the parallel data signals based on the adjustment to the phase of the synchronous clock signal.
Public/Granted literature
- US20140218221A1 Techniques For Alignment of Parallel Signals Public/Granted day:2014-08-07
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