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References

[1] Matthes, Wolfgang: Microprogramming Choices Explained (Part 1). Circuit Cellar, Issue 378, January 2022, p. 26-35.

[2] Matthes, Wolfgang: Microprogramming Choices Explained (Part 2). Circuit Cellar, Issue 379, February 2022, p. 22-32.

[3] Matthes, Wolfgang: Mikroprogrammierung. Prinzipien, Architekturen, Maschinen. ISBN 978-3-8325-5234-3. Logos, 2021.

German patent applications:

[4] Mikrorechneranordnung, vorzugsweise für den Einsatz in Multimikrorechnersystemen.

    DE file number: DD 159 916 A1

    Application number: 23096181

    Application  date: June 22, 1981

Microprocessor configuration, preferably for the application in multimicroprocessor systems.

    EP000000067982A2

[5]     Speicheranordnung mit Fehlererkennungs- und Diagnoseeigenschaften, vorzugsweise für Mikrorechner

    DE file number: DD 225 072 6

    Application date: Nov 10, 1980

    https://register.dpma.de/DPMAregister/pat/register?AKZ=DD154244

[6] Speicheranordnung mit Eingabe-/Ausgabeanschluß, vorzugsweise zum Einsatz in Multimikrorechnersystemen

    DE file number: DD 272 021 6

    Application date: Dec 28, 1984

    https://register.dpma.de/DPMAregister/pat/register?AKZ=DD233435 

[7]     Mikrorechneranordnung mit erweiterten Steuerwirkungen

    DE file number: DD 288 148 1

    Application date: Mar 21, 1986

    https://register.dpma.de/DPMAregister/pat/register?AKZ=DD246858

[8]     Mikrorechneranordnung mit programmgesteuertem Interfaceanschluß

    DE file number: DD 288 145 7

    Application date: Mar 21, 1986

    https://register.dpma.de/DPMAregister/pat/register?AKZ=DD246860

All patents lapsed long ago.

Attaching accelerators:

[9] Patel, Sanjay; Hwu, Wen-mei: Accelerator Architectures. IEEE Micro, July-August 2008, p. 4-12.

[10]    MicroBlaze Processor Reference Guide UG 081. Xilinx, 2009.

[11]    Rosinger, Hans-Peter: Connecting Customized IP to the MicroBlaze Soft Processor Using the Fast Simplex Link (FSL) Channel. Application Note XAPP529. Xilinx, 2004.

[12]    Madinger, Noah: The Co-Processor Architecture: An Embedded System Architecture for Rapid Prototyping. DigiKey, 2022.

https://www.digikey.com/en/articles/the-co-processor-architecture-an-embedded-system-architecture-for-rapid-prototyping

 

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September 26, 2022

Download the Internet Addendum to the CC article

Download a short synopsis concerning the theory of operation

Download chapter 7. Yes, it is in German. However, an Internet translator should do it.

Download three short papers written in the Eighties (under frugal conditions with modest equipment). The examples refer to the Z80 microprocessor.

Memory Combines Parity Checking with Program Tracing Support

Additional Control Memory Improves Performance of Low-Cost Microprocessors

Hardware Support for Testability, Debuging, and Better Performance

 

Download a synopsis of (more or less) tricky circuitry to be attached to microprocessors, written (of course in German) in the Seventies and Eighties

Download an excerpt from this book (in German, despite the title):