Subscriber line interface circuitry with integrated serial interfaces

Abstract

Methods and apparatus for communicating include communicating frames of data having a first timeslot allocation of s timeslots serially from a first device to a second device using a first unidirectional data line at a frequency f1. An edge of each frame as a detected edge. A clock signal having a frequency f2 is generated in response to the detected edges, wherein f 2 f 1 ≈ n · s , wherein n>1, wherein the clock signal is maintained substantially synchronous to the detected edges. Frames of data having a second timeslot allocation of s timeslots are communicated serially from the second device to the first device using a second unidirectional data line at the frequency f1 as derived from f2.

Dependencies are inferred from the claim text.