LOCALIZED CALIBRATION OF PROGRAMMABLE DIGITAL LOGIC CELLS

摘要

An integrated circuit (IC) (420) includes self-calibrating programmable digital logic circuitry. The IC includes at least one programmable digital logic cell (431A-431E), wherein the programmable digital logic cell provides (i) a plurality of different accessible circuit configurations or (ii) a voltage level controller. A self-calibration system (435) is provided that includes at least one reference device (430), a measurement device (441) for measuring at least one electrical performance parameter that can affect a processing speed of the programmable digital logic cell (421A-431E) or at least one parameter that can affect the electrical performance parameter using the reference device to obtain calibration data. A processing device (442) maps the calibration data or a parameter derived therefrom to generate a control signal (446) that is operable to select from the plurality of different accessible circuit configurations or a voltage level output to change the processing speed of the programmable digital logic cell.