Racyics Gmbh

Jörg Schreiter

Sebastian Höppner

Stephan Henker

André Scharfe

A method and an apparatus for reducing an effect of local process variations of a digital circuit on a hardware performance monitor includes measuring a set of performance values (c, c. . . c) of the digital circuit by n identical hardware performance monitors, where n is a natural number greater than 1, determining an average value cof the measured performance values (c, c. . . c), as an approximation of an ideal performance value c, selecting one performance value cof the set of performance values (c, c. . . c) by a controller, comparing the performance value cwith a reference value cby a controller the controller, resulting in a deviation value &#x394;c, and controlling an actuator by using the deviation &#x394;c for regulating the local global process variations to the approximation cof the ideal performance value c.

Method and an apparatus for reducing the effect of local process variations of a digital circuit on a hardware performance monitor

An apparatus and a method for generation and adaptive regulation of body bias voltages of an integrated circuit efficiently generates control voltages for active body biasing The apparatus includes a digital circuit, a counter, a control unit and at least one charge pump. The control unit and the digital circuit are connected in a closed control loop, and the digital circuit comprises at least one hardware performance monitor to monitor a timing of a body bias voltage. The control loop is formed by a control path comprising the at least one charge pump, the hardware performance monitor and the control unit. The charge pump is controllably connected to the control unit to adjust the charge pump for generation and adaptive regulation of the body bias voltage according to a timing frequency difference between an output signal of the hardware performance monitor and a reference clock signal.

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Markkleeberg, Germany

Jörg Schreiter