Silicon Labs Cp, Inc.

Alan Storvik

Ka Yin Leung

Kenneth Wilson Fernald

Douglas S Piasecki

Douglas R Holberg

Donald E Alfano

Paul Highley

Danny Joe Allred

Brian Caloway

A reconfigurable processor includes a processor core for operating on a set of instructions to carry out predefined processes and includes a plurality of input/output pins in addition to a plurality of functional input/output blocks. These functional blocks allow the processing core to interface with the plurality of input/output pins, each of the functional input/output blocks having an associated and predetermined functionality. This functionality comprises the output as a function of the input, the function defined by the functionality. Each of the functional input/output blocks has a requirement for a defined number of the plurality of input/output pins wherein the total of the defined number for all of the plurality of functional input/output blocks exceeds the number of the plurality of input/output pins and wherein the processor core is interfaced with one of the input or output of each of the functional blocks. A reconfigurable interface selectively interfaces between the other of the input or output of the functional blocks and a select one or ones of the plurality of input/output pins, such that the processor core can be interfaced with the select one or ones of the input/output pins. The reconfigurable interface is operable to define how each of the plurality of input/output pins interfaces with the select ones of the plurality of functional blocks and the associated functionality in accordance with configuration information. A non-volatile memory is provided for storing information for use in association with the configuration information, such that the stored information can be altered.

Reconfigurable interface for coupling functional input/output blocks to limited number of I/O pins

An integrated circuit package includes a processing core and an internal oscillator. The processing core operates on a set of instructions to carry out predefined processes. The internal oscillator provides a system clock for the integrated circuit package. The internal oscillator has associated therewith an internal control register for controlling the operation of the internal oscillator responsive to control bits of the internal oscillator controlled by the processing core.

Integrated circuit package including programmable oscillators

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Austin, TX, United States of America

Alan Storvik