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History of the ISA: Digital Equipment Corporation

History of the ISA: Digital Equipment Corporation

ISAs come in several different flavours. Many are proprietary (think AMD), while others are paving the way for open source (think RISC-V). To help get a feel for what’s out there, here’s a brief primer on the history, evolution, and characteristics of a select few, starting with ISAs developed by Digital Equipment Corporation (DEC).


News Aug 08, 2018 by Chantelle Dubois
The Quantum Race: Roundup on Quantum Cryptosecurity, Programming Languages, and Development

The Quantum Race: Roundup on Quantum Cryptosecurity, Programming Languages, and Development

The space race of the cold war saw the US and Russia develop a wide range of aerospace technologies. But a new race is about to begin, mostly among corporations, and the winner will unlock the power of the quantum computing realm.


News Jul 31, 2018 by Robin Mitchell
Considerations for Adding Reset Capability to an FPGA Design

Considerations for Adding Reset Capability to an FPGA Design

This article will look at some of the consequences of adding a reset input to an FPGA design.


Build a PWM Controller for PC Fans with GreenPAK

Build a PWM Controller for PC Fans with GreenPAK

This article shows how to build a 12 V PC fan PWM controller with GreenPAK ICs.


The World’s Largest “Ultrahigh-Sensitivity” Sensor Could Defend the Earth from Meteors

The World’s Largest “Ultrahigh-Sensitivity” Sensor Could Defend the Earth from Meteors

Canon has demonstrated the world's largest sensor at a whopping 400cm square that can be used in light levels as low as 0.3 lux. What challenges does such a sensor face and how could it be used to defend the earth?


News Jul 09, 2018 by Robin Mitchell
Use the Xilinx System Generator to Implement a Simple DDS

Use the Xilinx System Generator to Implement a Simple DDS

In this article, we’ll discuss implementing a simple direct digital synthesizer (DDS) using the Xilinx System Generator.


Product Brief: New CMOS Imaging Sensor by ams Aims to Be the Future for Machine Vision

Product Brief: New CMOS Imaging Sensor by ams Aims to Be the Future for Machine Vision

ams, an Austrian company which specializes in sensor technology with a special focus on miniaturization and low-power, recently announced the beginning of production for their CMV50000 CMOS image sensor.


News Jun 26, 2018 by Chantelle Dubois
Basics of Phase Truncation in Direct Digital Synthesizers

Basics of Phase Truncation in Direct Digital Synthesizers

This article will discuss phase truncation in direct digital synthesizers.


Ultra-Low Jitter: A Programmable Oscillator with Internal EEPROM from Texas Instruments

Ultra-Low Jitter: A Programmable Oscillator with Internal EEPROM from Texas Instruments

The LMK61E07 is an I2C-controlled programmable variable frequency oscillator that can be used as an adjustable frequency source in computer networking, medical imaging, FPGA, and broadcast video applications.


News Jun 14, 2018 by Mark Hughes
Implementing a Binary Parity Generator and Checker with GreenPAK

Implementing a Binary Parity Generator and Checker with GreenPAK

This app note implements a binary parity generator and checker with two data input variants, a parallel data input, and a serial data input. It describes the implemented logic, GreenPAKs implementation, and the obtained results.


Hardware Evaluation of a Custom Programmable Wi-Fi Controller: The WiCard

Hardware Evaluation of a Custom Programmable Wi-Fi Controller: The WiCard

This article explores the schematic design and basic features of a smart programmable wireless controller module I designed: the WiCard.


Two New SPI Analog Mux Switches from Analog Devices

Two New SPI Analog Mux Switches from Analog Devices

Analog Devices recently announced two new SPI-controlled analog mux switches: the ADGS1208, which has eight single channels, and the ADGS1209, which has four differential channels.


News May 25, 2018 by Nick Davis
Pipelined Direct Form FIR Versus the Transposed Structure

Pipelined Direct Form FIR Versus the Transposed Structure

This article will review two pipelined structures to implement a high throughput FIR filter.


Utilizing Xilinx’s MicroBlaze in FPGA Design

Utilizing Xilinx’s MicroBlaze in FPGA Design

MicroBlaze is a 32-bit soft RISC processor core, created to accelerate the development of cost-sensitive, high-volume applications that traditionally required one or more microcontrollers.


T Is for Toggle: Understanding the T Flip-Flop

T Is for Toggle: Understanding the T Flip-Flop

This tech brief provides an overview of a somewhat uncommon member of the flip-flop family.


How to Use Carry-Save Adders to Efficiently Implement Multioperand Addition

How to Use Carry-Save Adders to Efficiently Implement Multioperand Addition

This article reviews the use of carry-save adders to efficiently compute a multioperand addition.


How to Write the VHDL Description of a Simple Algorithm: The Control Path

How to Write the VHDL Description of a Simple Algorithm: The Control Path

This article will review converting a simple algorithm into a VHDL description.


How to Write the VHDL Description of a Simple Algorithm: The Data Path

How to Write the VHDL Description of a Simple Algorithm: The Data Path

In this article, you'll learn how to write the VHDL code for a simple algorithm.


How to Reduce Power Consumption with Clock Gating

How to Reduce Power Consumption with Clock Gating

This article will discuss the basic concepts of clock gating and how it can be used to reduce the power consumption of synchronous digital systems.


Encoding the States of a Finite State Machine in VHDL

Encoding the States of a Finite State Machine in VHDL

This article will review different encoding methods that can be used to implement the states of an FSM.