Unisys Corporation

Chris E Limson

Gregory K Deal

David S Milowicki

A system of determining oscillation frequency of a ring oscillator formed on a chip. The system includes a ring oscillator formed on the chip for providing a ring clock signal having first periodic pulses, and a ring counter formed on the chip for providing a ring clock count value in response to the first periodic pulses. The system also includes a terminal for receiving a system clock signal having second periodic pulses, and a system counter formed on the chip for providing a system clock count value in response to the second periodic pulses. The oscillation frequency of the ring oscillator is determined based on the ring clock count value and the system clock count value.

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Norristown, PA, United States of America

Chris E Limson