Patent ID: 6247137
Filing Date: 2001-06-12
Classification: G06F

Abstract:
A method of forcing a particular orientation of a select signal that is used to route data from flip flops configured in a round robin scheme and activated by signals in a clock domain of a sending portion of a digital circuit to one or more flip flops clocked by signals in a clock domain of a receiving portion of the digital circuit comprising:selectively delaying a strobe signal and a data signal having read windows validated by the strobe signal to force a particular orientation of the select signal, wherein the strobe signal and data signal are provided by the sending portion of the digital circuit;generating intermediate activation signals for the flip flops configured in the round robin scheme from the strobe signal;generating the select signal;comparing a phase of a signal derived from one or more of the intermediate activation signals with a phase of the select signal; andtoggling the orientation of the select signal if the select signal does not have a correct phase relationship with respect to the intermediate activation signals.