CLOCK TREE INSERTION DELAY INDEPENDENT INTERFACE

• Main Authors: BLOCK STEFAN, PREUTHEN HERBERT, DIRKS JUERGEN
• Format: Patent
• Language: English
• Published: 09.08.2012
• Subjects: AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES; BASIC ELECTRONIC CIRCUITRY; CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Disclosed herein is a multi-clock interface, an integrated circuit and a module thereof having the multi-clock interface and a library having cells corresponding to the above noted circuitry. In one embodiment the multi-clock interface includes: (1) a multi-clock reset synchronizer configured to receive a first external clock signal and a second external clock signal that is a multiple of the first clock signal, the reset synchronizer configured to synchronize a reset of both the first and second external clock signals and based thereon generate a reset release signal and (2) a multi-phase clock generator configured to receive the reset release signal and the second clock signal, the multi-phase clock generator configured to generate multiple clock phases from the second clock signal based on the reset release signal.