DATA BIT-TO-CLOCK ALIGNMENT CIRCUIT WITH FIRST BIT CAPTURE CAPABILITY

摘要

A plurality of data signal delay (102) and sampling (103) circuits are connected to a clock terminal and a parallel data terminal to provide time-slice bit samples of each information bit of a parallel data signal. A comparator (104) and decision (105) circuit compares and selects one of the plurality of time-slice bit samples which is phase aligned with the clock signal. A multiplexer circuit (107) outputs the selected time-slice bit sample of each word bit of the parallel data signal as the phase-aligned parallel data signal. A first-bit intialization circuit (106) causes the time-slice bit samples corresponding in time to the logic state transition of the data ready signal to be output as a first one or more information bits of the phase-aligned data signal.