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  System and method for programming integrated circuit package via jtag interfaceUSPTO Application #: 20070300046Title: System and method for programming integrated circuit package via jtag interface Abstract: An integrated circuit package includes a processing core for operating on a set of instructions to carry out predefined processes. A flash memory stores instructions within the integrated circuit package. A plurality of registers stores data and the program instructions during execution of the program instructions. A JTAG interface provides an interface with the integrated circuit package and enables interactions with the processing core and the plurality of registers. Emulation logic enables manipulating and monitoring program flow through the JTAG interface during execution of the program instructions. (end of abstract) Agent: Howison & Arnott, L.l.p - Dallas, TX, US Inventors: DONALD E. ALFANO, DANNY J. ALLRED, DOUGLAS S. PIASECKI, KENNETH W. FERNALD, KA Y. LEUNG, BRIAN CALOWAY, ALVIN STORVIK, PAUL HIGHLEY, DOUGLAS R. HOLBERG USPTO Applicaton #: 20070300046 - Class: 712038000 (USPTO) Related Patent Categories: Electrical Computers And Digital Processing Systems: Processing Architectures And Instruction Processing (e.g., Processors), Processing Architecture, Microprocessor Or Multichip Or Multimodule Processor Having Sequential Program Control, Offchip Interface The Patent Description & Claims data below is from USPTO Patent Application 20070300046. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a Continuation of U.S. patent application Ser. No. 11/618,644, filed Dec. 29, 2006, entitled "ANALOG-TO-DIGITAL CONVERTER WITH LOW POWER TRACK-AND-HOLD MODE", which is a Continuation of U.S. patent application Ser. No. 09/885,459, filed Jun. 19, 2001 and entitled "FIELD PROGRAMMABLE MIXED-SIGNAL CIRCUIT", which claims benefit of Provisional Application No. 60/212,653, filed Jun. 19, 2000, entitled "FIELD PROGRAMMABLE MIXED-SIGNAL CIRCUIT" and is related to U.S. patent application Ser. No. 11/381,707, filed May 4, 2006, entitled "FIELD PROGRAMMABLE MIXED-SIGNAL CIRCUIT", all of which are incorporated herein by reference. TECHNICAL FIELD OF THE INVENTION [0002] The invention pertains in general to programming integrated circuits and, more particularly to programming integrated circuits via a JTAG interface. BACKGROUND OF THE INVENTION [0003] As integrated circuits have seen increased use in recent years, the integration of multiple functions onto a single chip has also increased. Although purely digital circuits require a common technology with respect to transistors, i.e., all CMOS transistors, analog circuitry requires a different technology for such devices as bipolar devices. Each technology facilitates itself to a common processing technology for common devices when only that technology is involved and required. However, whenever audio systems are combined with digital systems, analog technology must be merged with digital technology. This can create problems due to the fact that analog circuitry is sometimes incompatible with the digital clocking signals, especially with respect to analog-to-digital converters. Very high resolution analog-to-digital converters or digital-to-analog converters can be affected by noise created in the digital circuitry. When merging the two technologies together, this is referred to as "mixed-signal" technology. [0004] In current mixed-signal technology, it is desirable to combine the functionality of a microprocessor or microcontroller with an interface to the analog domain through an analog-to-digital converter or a digital-to-analog converter. Further, for many applications, there is a desire for configurability to allow various functions to be emulated or realized with the circuit. Some instrumentation applications require such. The application could be achieved with multiple integrated circuits configured in many different ways, but the desire is for a single chip solution. SUMMARY OF THE INVENTION [0005] The present invention, as disclosed and described herein, in one aspect thereof, comprises an integrated circuit package. The integrated circuit package includes a processing core for operating on a set of instructions to carry out predefined processes. A flash memory stores instructions within the integrated circuit package. A plurality of registers stores data and the program instructions during execution of the program instructions. A JTAG interface provides an interface with the integrated circuit package and enables interactions with the processing core and the plurality of registers. Emulation logic enables manipulating and monitoring program flow through the JTAG interface during execution of the program instructions. BRIEF DESCRIPTION OF THE DRAWINGS [0006] For a more complete understanding of the present invention and the advantages thereof, reference is now made to the following description taken in conjunction with the accompanying Drawings in which: [0007] FIG. 1 illustrates an overall diagram of the system; [0008] FIG. 2 illustrates in more detailed block diagram of the system; [0009] FIG. 3 illustrates the onboard clock and reset; [0010] FIG. 4 illustrates the onboard memory maps; and [0011] FIG. 5 illustrates an emulation diagram; [0012] FIG. 6 illustrates the digital crossbar; [0013] FIG. 7 illustrates a PCA block diagram; [0014] FIG. 8 illustrates the ADC; [0015] FIG. 9 illustrates the comparator and DAC diagrams; [0016] FIG. 10 illustrates the ADC; [0017] FIGS. 11A and 11B illustrate a timing diagram for the ADC; [0018] FIG. 12 illustrates a diagram for the temperature sensor; [0019] FIGS. 13A, 13B, 14A and 14B illustrate the ADC inter operations; Continue reading... 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