Control—mechanism for selectively shorting clock grid by electrically connecting and disconnecting clock branches once per clock cycle

A method, comprising:

• sensing a controlling portion of a slow clock signal having a first frequency conducted by a first clock branch;
• and
• once per slow clock cycle:
• electrically connecting the first clock branch to a second clock branch during the sensed controlling portion of the slow clock signal, and
• electrically disconnecting the first clock branch from the second clock branch,
• wherein the second clock branch conducts a fast clock signal having a second frequency that is an integer multiple of the slow clock signal.

A device comprising:

• a clock tree comprising a first clock branch that conducts a slow clock signal at a first frequency and a second clock branch that conducts a fast clock signal at a second frequency that is an integer multiple of the first frequency;
• a selective shorting device electrically coupled between the first clock branch and second clock branch, the selective shorting device being configured to selectively electrically connect the first clock branch to the second clock branch, and to selectively electrically disconnect the first clock branch from the second clock branch;
• and
• a selective shorting control mechanism configured to, once per slow clock cycle:
• control the selective shorting device to electrically connect the first clock branch to the second clock branch;
• and
• control the selective shorting device to electrically disconnect the first clock branch from the second clock branch.