Patent ID: 9613665
Date: 2017-04-04
CPC Classifications: G06F,G11C,H03L

Claim:
1. A method for performing memory interface control of an electronic device, the method comprising the steps of: when it is detected that a phase difference between a data signal and a clock signal reaches a predetermined value, controlling the clock signal to switch from a first frequency to a second frequency, wherein both of the clock signal and the data signal are signals of a memory interface circuit of the electronic device, and the memory interface circuit is arranged for controlling a random access memory (RAM) of the electronic device; applying at least one phase shift to the data signal until a condition is satisfied, wherein the at least one phase shift is applied to the data signal after the clock signal switches from the first frequency to the second frequency; and controlling the clock signal to switch from the second frequency to the first frequency, wherein the clock signal switches from the second frequency to the first frequency after the at least one phase shift is applied to the data signal; wherein the memory interface circuit is calibrated with aid of the at least one phase shift.