Patent ID: 7804923
Filing Date: 2010-09-28
Classification: H03L

Abstract:
1. An apparatus for precluding reception errors in an source synchronous receiver, the apparatus comprising: a delay-locked loop, configured to receive a reference clock signal, and configured to generate a select vector signal and an encoded select vector signal that both indicate a lockout time period, wherein said select vector signal is employed to select one of a plurality of successively delayed versions of said reference clock signal that lags said reference clock signal by said lockout time period, and wherein said lockout time period is slightly less than a prescribed number of cycles of said reference clock signal; and one or more strobe receivers, each coupled to said delay-locked loop, said each of said one or more strobe receivers being configured to receive said encoded select vector signal and a corresponding strobe signal, wherein said each of said one or more strobe receivers is configured to lock out reception of said corresponding strobe signal for said lockout time period following transition of said corresponding strobe signal, and wherein said encoded select vector signal is employed to determine said lockout time period by selecting one of a plurality of successively delayed versions of said corresponding strobe signal.