Ppt on switching devices in ece

© NUS 2005 TD5102 Embedded System in Silicon FPGA Architecture and EDA Dr. Ha Yajun (E1-08-17,

3 Embedded Systems Examples: Communication devices Wired and wireless routers and switches Automotive applications Braking systems, traction control, airbag release systems, and cruise-control applications Aerospace applications Flight-control systems, engine controllers, auto-pilots and passenger in-flight entertainment systems Defense systems Radar systems, fighter aircraft flight-control systems, radio systems, and missile guidance systems © NUS 2005 Yajun Ha / ECE, NUS 4 Simplified and/


Two Semester Senior Design Capstone ECE 4805-4806 Information Session March 19, 2014 Gino Manzo 571-722-2667

control system. – Real time signal level hardware-in-the loop(HIL) simulation for comprehensive validation /switch –Design and test documents Fluxgate Magnetometer Drive Prime Photonics, Blacksburg, VA Description – Design and construct a fluxgate magnetometer drive and measurement package – Fluxgate magnetometer is a device/ leadership/team member traits & behaviors, listening skills, identifying strengths, weaknesses) ECE 4806 Design Implementation 60% Simulations- 10% Prototyping -20% Design of Experiments/


ECE 354 © Moritz 2009, some slides modified from Moritz/Koren/Burleson, UMass and Wolf, Computers as Components, Morgan Kaufman, 2005 Big Picture – Lab.

of a component that can be customized and used in different circumstances.  Firmware – basic system software for a chip  Device driver – control of hardware modules in a system tightly coupled with operating systems 43 ECE 354 © Moritz 2009, some slides modified from Moritz/=1 r=1/out1=0 s=1/out1=1 s=0/out1=0 48 ECE 354 © Moritz 2009, some slides modified from Moritz/Koren/Burleson, UMass and Wolf, Computers as Components, Morgan Kaufman, 2005 C state table switch (state) { case A: if (in1==1) { x = a; /


M. ALSAFRJALANI D. DZENITIS Runtime PR for Software Radio 2/26/2010 UFL ECE Dept 1 PARTIAL RECONFIGURATION (PR)

a 41 32-bit words  PR addressing overhead is about 10% and ignored in calculation  Other factors:  Implementation, target device, and source location PR using uController 2/26/2010 UFL ECE Dept 10  Eliminate the need for an external controller (PC)  Autonomous /Turbo encoder switched to convolutional and Reed- Solomon encoder  Turbo decoder switched to a Viterbi and Reed- Solomon decoder Dynamic Bandwidth Resource Allocation (DBRA) 2/26/2010 UFL ECE Dept 20 Cognitive Radio 2/26/2010 UFL ECE Dept 21 /


Voice over IP. ECE 499VoIP2 Introduction Basics of VoIP Comparisons with current phone systems VoIP Protocols VoIP Issues Telephone Regulation Future.

Easier to upgrade 4) Keep your voice and its pertinent data on the same lines 5) Different devices can communicate with each other ECE 499VoIP23 VoIP vs. PSTN Carrier Lines Bandwidth Added Features Expandability and Upgradeability Typical Cost of a Business Line/on the future with VoIP and OSU Marc Orr, Carrie Kolstad, and Nick Patron in the basement of Kerr Administration ECE 499VoIP31 OSU Phone Network New Telephone Switch installed in the early 90’s – cost OSU $8 million Currently supports over 12,000 /


ECE 546 – Jose Schutt-Aine 1 Spring 2014 Jose E. Schutt-Aine Electrical & Computer Engineering University of Illinois ECE 546 Lecture.

Case B, 4 Gb/s NRZ t r =67ps, uncoded All lines in sync Arbitrary phase switching A: Uniform PCB traces B: Cascaded traces with discontinuities ECE 546 – Jose Schutt-Aine 49 Propagation Constants of Modes Encoder/decoder/terminations can/Simulate large number of bits to achieve low BER – Non-linear blocks with time variant Systems – TX/RX equalization and vendor specific device settings – Coding schemes – All types of jitter: (random, deterministic, etc.) – Crosstalk, loss, dispersion, attenuation, etc… /


1 ECE - 156. 2 ECE - 156 Homework #1 1. Develop a presentation describing 3 ideas for senior design projects. Use 3 slides to explain each proposed device.

and store at least one single cough from the patient. The microphone and recorder should capture all important frequencies in coughs, and with sufficient dynamic range to cover the loudest to softest parts of the signal. The microphone/recorder/continuous use. The recorder must have an “on/off” switch. The recorder must have a “start/stop recording” switch. 9 ECE - 156 Acceptable Set of Overall Project Requirements Example #2 (cont’d) – Device for the recording, audio analysis and classification of coughs /


University of Colorado at Boulder – ECE Capstone – CDR – October 16, 2007.

speckle pattern will change as the robotic tapping device puts pressure on the fiber strand in various locations Hundreds of speckle patterns will be recorded as the tapping device produces random tapping along the fiber The Self/tapping arm movement MD2S-P sends required waveform to STH39C stepper motor for tapper device movement Digital switch relays home position of tapping device to MSP430 University of Colorado at Boulder – ECE Capstone – CDR – October 16, 2007 Division of Labor Hardware/Calibration – /


Fundamentals of Computer Networks ECE 478/578 Lecture #1 Instructor: Loukas Lazos Dept of Electrical and Computer Engineering University of Arizona.

communication – email, chat, videoconferencing, social networking, entertainment Appears in every facet of engineering Modern trend – Network every (electronic) device (computers, phones, sensors, planes, cars, TVs, appliances/ Office: ECE bldg: Room 356H Office Hours 10:00 – 11:00 AM TTh and by appointment My Email: llazos@ece.arizona.edullazos@ece.arizona.edu/ information Unable to avoid per-connection storage and state 33 Packet Switched Networks Data is divided into packets (messages) Each packet contains/


University of Arizona ECE 478/578 309 Packet Relay u Relaying: Switching packets asynchronously u Types of packet relay: 1. Cell relay: s Fixed-size packets.

1LT/ET S TU TE 2 R University of Arizona ECE 478/578 315 Typical ISDN Topology (Cont.) u TE1 = end-user ISDN terminal u TE2 = non-ISDN terminal u TA = terminal adaptor u NT1 = device that connects 4-wire subscriber wiring to 2-wire local /Physical AAL ATM Physical ATM Network UNI PNNI User AUser B University of Arizona ECE 478/578 334 Generic Flow Control (GFC) u Four bits in the cell header u Only in cells at UNI (intermediate switches overwrite it) u Intended for link-by-link flow control u Typically, GFC/


Single-phase half-bridge inverter

switched on and off alternately Need to isolate the gate signal for Q1 (upper device) Each provides opposite polarity of Vs/2 across the load ECE 442 Power Electronics Q1 on, Q2 off, vo = Vs/2 Peak Reverse Voltage of Q2 = Vs ECE/V01 = rms value of the fundamental component ECE 442 Power Electronics Performance Parameters (continued) Total Harmonic Distortion (THD) Measures the “closeness” in shape between a waveform and its fundamental component ECE 442 Power Electronics Performance Parameters (continued) /


Massively Parallel Processors ECE/CS 757 Spring 2007 J. E. Smith Copyright (C) 2007 by James E. Smith (unless noted otherwise) All rights reserved. Except.

Smith ECE/CS 757 Address Interpretation  T3D needs: 64 MB memory per node => 26 bits up to 2048 nodes => 11 bits  Alpha 21064 provides: 43-bit virtual address 32-bit physical address (+2 bits for mem mapped devices)  Annex registers in DTB / local optimized  latency and bandwidth scale well, BUT individual switch complexity grows  max size is often “built in” to switch design (C) 2007 J. E. Smith ECE/CS 757 2D Torus  Direct interconnect  Performance/Cost: Switch cost: N Wire cost: 2 N Avg. latency: N/


ECE 3450 M. A. Jupina, VU, 2012  Overview of Digital Logic Technologies  FPLD Technologies  Altera DE2 Development Board  Hardware Description Languages.

II to HardCopy II) http://www.altera.com/products/devices/hardcopyii/hr2-index.jsp?f=hc2hp&k=m1 FPLD ROM ECE 3450 M. A. Jupina, VU, 2012 Complexity of/design? More routing means more “route-ability,” but less room for logic elements Issues in FPLD Technologies ECE 3450 M. A. Jupina, VU, 2012 Macro elements –Are there SRAM blocks?/voltage exceeds the high threshold, the internal -- state switches to 5 Volts and when the input drops below the low threshold, -- the state switches to 0 Volts. -- The output is an /


Latest ECE Projects Ideas In Various Electronics Technologies.

Ac / Dc Motor  Remote On/Off Controller For Ac Motors With Parameter Monitoring  Remote Speed Control Of Ac / Dc Motor  Remote Switching System For Home Appliances http://www.elprocus.com/ Latest ECE Projects Ideas In Various Electronics Technologies  Dual Control Of Electrical Devices Through Computer Keyboard And hardware  Substation Monitoring System – Electrical Transmission And Distribution Process  Electrical Network Automation & Communication Systems  Remote Data Monitoring/


Created by Steven Chambers in Fall 2012

in Fall 2012 ECE 311 – Electronics Lab I Pre-labs for ECE 311 Created by Steven Chambers in Fall 2012 Last Updated: 12/20/2012 Laboratory 0 – Laboratory Demonstration Introduction to Laboratory 0 Curve Tracer Plots I-V curve for two and three terminal devices Can plot a family of curves for different bias conditions Used in/-Channel JFET P-type gates N-type channel with ohmic contacts at both ends P-Channel switches doping type positions Current flow is controlled by gate bias VGS = 0 – Depletion regions /


ECE Department: University of Massachusetts, Amherst ECE 354 Lab 3: Transmitting and Receiving Ethernet Packets.

ECE 354 Skills to learn  Understanding previously written code  Using a peripheral device: DM9000A chip  Connect to a device that you did not design: DM9000A Ethernet chip  Internet protocol stack 4 ECE 354 Additional Hardware  Two DE2 boards  Ethernet cable 5 ECE/ and Presentation (OSI) 6 ECE 354 Overview of Lab  Each group should specify the information in Layers 2 through 5 (Link, Network, Transport, and Application)  The payload should be 16 bits selected by 16 switches (switch_pio) on the DE2 /


ECE 663 MOSFET SCALING. ECE 663 Scaling of switches.

–Fixed cost per wafer  Smaller (2x), Faster (2x), cheaper – strong economic driving force  30% improvement in cost per function per year ECE 663 CMOS Device Scaling ParametersVariablesScaling Factor DimensionsW,L,x ox,x j 1/ PotentialsV ds,V gs 1/k Doping ConcentrationN 2 /k /substance parasitic capacitance small (faster switch!) No latch-up between NMOS and PMOS (no substrate) ECE 663 Band diagram in SOIs ECE 663 SOI S = (MkT/q)ln(10), M = 1+ C p /C ox ECE 663 Kink effect in PDSOI At high drain bias,/


ECE 753: FAULT-TOLERANT COMPUTING Kewal K.Saluja Department of Electrical and Computer Engineering Basic Concepts in Fault-Tolerance.

monitors the function of the working unit Hardware redundancy (contd.) ECE 753 Fault Tolerant Computing12 Hybrid hardware redundancy – Key - combine passive and active redundancy schemes Key - combine passive and active redundancy schemes –NMR with sparesNMR with spares example - 5 units –3 in TMR mode3 in TMR mode –2 spares2 spares –all 5 connected to a switch that can be reconfiguredall 5 connected to a/


ECE 3450 M. A. Jupina, VU, 2014 Properties of Digital Circuits  Quantized States  Voltage Transfer Characteristic (VTC)  Voltage Levels  Noise Margins.

gates.  FETs are voltage controlled and operate nearly as an ideal switch.  MOSFETs advantages: Lower power consumption than BJTs so billons of devices can be packed onto a single chip (MOSFETs or what are now known as FinFETs have dimensions in the deep sub-micron range). ECE 3450 M. A. Jupina, VU, 2014 CMOS ECE 3450 M. A. Jupina, VU, 2014 Currently, how small is/


ECE 4730: Lecture #27 1  Advanced Mobile Phone Service (AMPS) – 1G Analog FM  IS-136 (aka USDC, IS-54) – 2G Digital TDMA  Global System for Mobile (GSM)

path for IS-95 CDMA (CDMAOne)  2.5G interim CMDA standard is IS-95B  High-speed packet and circuit switched data access  Original IS-95 data rate was 9.6 kbps »Data rate actually deployed by Sprint PCS and Verizon was/ reading, baby monitors, bluetooth devices, etc.  2400-2483.5 MHz »Wireless Local Area Networks (WLAN)  No wires required to network computers together in office building  significant time/labor/cost savings  IEEE 802.11 WLAN working group founded in 1987 ECE 4730: Lecture #27 23 /


ECE 298/241 Digital Systems Project 2007 Jonathan Rose Course Coordinator, ECE 241.

–Clock –Alarm Clock –Elevator controller –Calculator After that, people start thinking harder, –often based on interesting input & output devices –you will be spending a lot of time at it – make it fun! 15 Example Projects Interesting project from four years/make it a reality (38) 39 Useful Topics to Come in ECE 241 “Debouncing Switches” –If you want to make your own input switches, this deals with the problem that simple switches creating noisy inputs Larger Finite State Machines Finite State Machine Memory/


ECE 260B – CSE 241A Clocking 1http://vlsicad.ucsd.edu ECE260B – CSE241A Winter 2005 Clocking Website: Slides.

Rabaey, K. Keutzer of UCB ECE 260B – CSE 241A Clocking 28http://vlsicad.ucsd.edu Global Variations (Inter-die) Process variations  Performance variations Critical path delay of a 16-bit adder All devices have the same set of model /temperature  Substrate coupling l Parasitic resistance, capacitance in the substrate layer ECE 260B – CSE 241A Clocking 34http://vlsicad.ucsd.edu Crosstalk  Due to the coupling capacitance between interconnections, a signal switching on a net (aggressor) may affect the voltage/


ECE Department: University of Massachusetts, Amherst ECE 354 Spring 2009 Lab 3: Transmitting and Receiving Ethernet Packets.

 Using a peripheral device: DM9000A chip  Connect to a device that you did not design: DM9000A Ethernet chip  Internet protocol stack 4 ECE 354 Additional Hardware  Two DE2 boards  Ethernet cable 5 ECE 354 Overview of Lab  Each group should specify the information in Layers 2 through 5 (Link, Network, Transport, and Application)  The payload should be 16 bits selected by 16 switches on the DE2/


Embedded Systems Design: A Unified Hardware/Software Introduction 1 Chapter 3 General-Purpose Processors: Software ECE 4330 Embedded System Design.

list of parallel port connector pins and corresponding register location –Example : parallel port monitors the input switch and turns the LED on/off accordingly LPT Connection PinI/O DirectionRegister Address 1Output0 th bit of register/with real environment Download to board –Use device programmer –Runs in real environment, but not controllable Compromise: emulator –Runs in real environment, at speed or near –Supports some controllability from the PC ECE 4330 Embedded System Design 35 Application-Specific /


ECE/CS 757: Advanced Computer Architecture II Instructor:Mikko H Lipasti Spring 2015 University of Wisconsin-Madison Lecture notes based on slides created.

command packet initiates transfer (C) 2007 J. E. Smith ECE/CS 757 22 Example: Disk Read Disk class driver sends read message to CI port on HSC disk controller – Request contains device type, unit number, logical disk address, requestor’s buffer name/ J. E. Smith ECE/CS 757 37 Hardware Midplane 14 server blades in front – Plus shared media stuff – Double density of 1U server Switch, Power supply modules, etc. in back Airflow front to rear Redundant power supplies (C) 2007 J. E. Smith ECE/CS 757 38 Hardware,/


WELCOME. Presentation SUBMITTED TO, ECE DEPTT. SUBMITTED TO, ECE DEPTT. SUBMITTED BY, PRAKASH KUMAR ARYA ROLL NO. 1608214 GROUP:- A BRANCH:- ECE YEAR:-

ROLL NO. 1608214 GROUP:- A BRANCH:- ECE YEAR:- 3 rd Yr. TRAINING REPORT ON TELECOMMUNICATION INTRODUCTION TO BSNL BSNL: Bharat Sanchar Nigam Limited was formed in year 2000 and took over the service /DEVICES THE HARDWARE: Network adapters Modems Repeaters Wiring concentrators, hubs, and switches Bridges, routers, and gateways Microwave transmitters Infrared and laser transmitters Cellular transmitters Wireless LAN transmitters NETWORKING BASICS Bandwidth - indicates how much information can be carried in/


Problem Statement and Motivation Key Achievements and Future Goals Technical Approach Investigators: M. Stroscio, ECE and BioE; M. Dutta, ECE Prime Grant.

Achieved reproducible piston motion Achieved reproducible rotation Used technique to make variable reflection display Developing RF switch – liquids do not suffer from stiction. tethered drops are super-deformable, large displacements at /in rates of metabolism, perspiration, radiation, and perfusion. Problem Statement and Motivation Key Achievements and Future Goals Technical Approach Investigators: Natasha Devroye, ECE Primary Grant Support: UIC-WISEST startup funds Cognitive radios are wireless devices/


Integrating Nanostructures with Biological Structures Investigators: M. Stroscio, ECE and BioE; M. Dutta, ECE Prime Grant Support: ARO, NSF, AFOSR, SRC,

systems Investigators: Mitra Dutta, ECE and Michael A. Stroscio (ECE and BioE) Primary Grant Support: ARO AFOSR Problem Statement and Motivation Technical Approach Key Achievements and Future Goals Semiconductor nanocrystals functionalized with conductive polymers promote efficient charge transfer Low cost, light weight and tunable conductivities Explore the application of nanocomposite heterostructures in novel electronic and optoelectronic devices Fabrication of nanocomposite heterostructures/


ECE 260B – CSE 241A Power Distribution 1http://vlsicad.ucsd.edu ECE260B – CSE241A Winter 2005 Power Distribution Website:

& coordination of chip resources -Wiring tracks for power grid -Low Vt devices -Dynamic circuits -Clock gating -Placement and quantity of added decoupling capacitors ECE 260B – CSE 241A Power Distribution 6http://vlsicad.ucsd.edu Power and Ground Routing/ of S Zhao, K Roy & C.-K. Kok ECE 260B – CSE 241A Power Distribution 39http://vlsicad.ucsd.edu Current Distribution in Power Supply Network  Distribute switching current for each module in the power supply mesh  Observation: Currents tend to flow/


ECE 358: Computer Networks Instructor: Dr. Sagar Naik Introduction 1-1 To give you a thorough understanding of the Internet. Other kinds of emerging/evolving.

About the instructor Introduction 1-2 Teaching interest: Research: ECE 358, ECE 416, ECE 655 (Past: ECE 355, ECE 453) Energy efficiency of smartphones and tablets Wireless networks:/core: network of nets  circuit switching, packet switching, network structure 1.4 Delay, loss, and throughput in packet-switched networks  Performance metrics 1.5 /.d What’s the Internet: component view  millions of connected computing devices:  running network apps Home network Institutional network Mobile network Global ISP /


ECE 4400:427/527 - Computer Networks Spring 2015 Dr. Nghi Tran Department of Electrical & Computer Engineering Lecture 3: Network Architectures Dr. Nghi.

. Nghi Tran (ECE-University of Akron) ECE 4400:427/527Computer Networks 3 In this lecture, we introduce some central ideas common to all network architecture Layering Protocols We also consider two most widely referenced architectures: The OSI -7 –layer Internet architecture Layering Dr. Nghi Tran (ECE-University of Akron) ECE 4400:427/527Computer Networks 4 Communication network is so complex Contain many pieces: hosts, switching devices, channels/


Integrating Nanostructures with Biological Structures Investigators: M. Stroscio, ECE and BioE; M. Dutta, ECE Prime Grant Support: ARO, NSF, AFOSR, SRC,

Statement and Motivation Technical Approach Key Achievements and Future Goals Frequency tunable microwave devices Magnetoelectric thin films Multiferroism in multilayered heterostructures Advanced RADAR arrays for Navy Spintronics RF Plasma assisted complex oxide epitaxial/ reflection display Developing RF switch – liquids do not suffer from stiction. 75 volts @ 300Hz with 35  m actuation Cardiac Sound Separation and Analysis Investigators: Roland Priemer, ECE; Vivek Nigam, ECE Prime Grant Support: Prakash/


ECE 342 – Jose Schutt-Aine ECE 442 Solid-State Devices & Circuits 4. CMOS Logic Circuits Jose E. Schutt-Aine Electrical & Computer Engineering University.

NMOS-Parallel 2 NMOS-Series 2 PMOS-Series 2 PMOS-Parallel Symbol # Devices PUN # Devices PDN Truth Table Basic Function INVERTER NOR NAND Basic Logic Function 6 ECE 342 – Jose Schutt-Aine Key features –When PDN switch is on, PUN switch is off and vice versa –Conditions for being on and off are /low  Y UP =Y DS. If Y DS is high, then either A or B (or both) are off (low) in which case either Q PA or Q PB in PUN-Parallel will be on and present a path to V DD ; thus Y UP =high  Y UP =Y DS PDN-Series/


Ultra Trace Cargo Monitoring Final Report Kevin Kurtz - ECE Jacob Klapheke - ECE Nick Searcy - ECE Nick Wood - ME Jason Guelda - ME.

ECE Jacob Klapheke - ECE Nick Searcy - ECE Nick Wood - ME Jason Guelda - ME Ultra Trace Cargo Monitor Pulls ambient air through MEMs capture device via a fan Targeted particulates are captured and stored on these MEMs devices Monitoring missions last up to two weeks long. The MEMs device/ for five minutes every hour – If fan fails, switch to redundant backup fan Monitor temperature for extremes – Temp/ -Set the Device Time Import data from the EEPROM -Pulls in data as CSV file for use in excel Detailed System/


ECE555 Lecture 5 Nam Sung Kim University of Wisconsin – Madison

DESIGN Dynamic CMOS In static circuits at every point in time (except when switching) the output is connected to either GND or VDD via a low resistance path. fan-in of n requires 2n (n N-type + n P-type) devices Dynamic circuits rely / complementary CMOS) Full swing outputs (VOL = GND and VOH = VDD) Non-ratioed - sizing of the devices does not affect the logic levels Faster switching speeds reduced load capacitance due to lower input capacitance (Cin) reduced load capacitance due to smaller output loading (/


ECE 753: FAULT-TOLERANT COMPUTING Kewal K.Saluja Department of Electrical and Computer Engineering Motivation and Introduction Lecture Set 1.

later –Merge the twoMerge the two ECE 753 Fault Tolerant Computing 14 Introduction (contd.) New initiatives Density of devices more failures likely Power issue – schedular/processing system high availability system –Switching systemSwitching system high availability over certain level of performance ECE 753 Fault Tolerant Computing 19/ or latent Failure – incorrect response Threats and modeling threats (3/12) FEF Chain in an hierarchy Threats and modeling threats (4/12) Fault classes Groups (not exclusive) /


Thermal arm-wrestling Design of a video game using two programmable flags (PF) interrupts Tutorial on handling 2 Hardware interrupts from an external device.

+ extras Test for interrupts using switches PF interrupts active NOTHING HAPPENING SYSTEM IS HUNG 6/2/2015 Thermal Arm Wrestling, Copyright M. Smith, ECE, University of Calgary, Canada12 / 24 + extras Turns out – missing stuff in set up  IMASK -- Page 4-33 Global register – allows IVG12 interrupts to occur  SIC_IMASK – Page 4-28 System interrupt mask – especially for peripheral devices Enabling PF Interrupt A during/


Prof. John Nestor ECE Department Lafayette College Easton, Pennsylvania 18042 ECE 491 - Senior Design I Lecture 2 FPGAs & Verilog.

CLB SB CLB IOB - Input/Output Block IOB SB IOB CLB - Configurable Logic BlockSB - Switch Block Switch ECE 491 Fall 2008Lecture 2 - FPGA-Based Design5 FPGA Tradeoffs  Advantages  Very low development cost  Post-manufacturing changes possible  Powerful functions in a small package  Relatively inexpensive  Disadvantages  Inefficient - unused CLBs are still on device  Much slower than ASICs, Custom ICs  Higher power than ASICs, Custom ICs  More/


ECE 331 – Digital System Design Boolean Expressions, Boolean Algebra, and Simplification (Lecture #3)

are circuits built from devices that switch between two states (e.g. 0 and 1).  Switching Algebra is a special case of Boolean Algebra in which all variables take on just two distinct values Boolean Algebra is a powerful tool for analyzing and designing logic circuits. ECE 331 - Digital System Design12 Basic Laws and Theorems ECE 331 - Digital System Design13 Distributive Law A.(B + C) = AB/


ECE 260B – CSE 241A Design Styles 1http://vlsicad.ucsd.edu ECE260B – CSE241A Winter 2005 Design Styles Multi-Vdd/Vth Designs Website:

?  Reduce leakage? Variation of leakage and delay (each normalized to 1) for an NMOS device in an industrial 130nm technology  Reduce leakage variability? Biasing ECE 260B – CSE 241A Design Styles 44http://vlsicad.ucsd.edu Gate-length Biasing  First proposed by/+ multi-V th + sizing/cell layout optimization attacks power from many angles (multi-dimensional)  Depending on criticality and switching activities, non- critical gates can be: l Assigned Vdd,low l Assigned Vdd,low + lower Vth l Assigned Vth,high/


ECE 301 – Digital Electronics Basic Logic Operations, Boolean Expressions, and Boolean Algebra (Lecture #3)

demonstrated that Boolean Algebra could be used to describe switching circuits.  Switching circuits are circuits built from devices that switch between two states (e.g. 0 and 1).  Switching Algebra is a special case of Boolean Algebra in which all variables take on just two distinct values Boolean Algebra is a powerful tool for analyzing and designing logic circuits. ECE 301 - Digital Electronics23 Basic Laws and Theorems/


17 - Winter 2005 ECE ECE 766 Computer Interfacing and Protocols 1 Local Area Networks Need for high performance communications for physically close devices.

devices (e.g. office environment) Why “local”? –Volume of locally created data –Increasing local computation power –Advantage of locality: High Speed! Design goals: –High speed and high bandwidth –Simple, maintainable, flexible, extendable –Low cost 17 - Winter 2005 ECE ECE/Winter 2005 ECE ECE 766 Computer Interfacing and Protocols 9 CSMA Protocols –P-persistent: Used in slotted /Winter 2005 ECE ECE 766 Computer Interfacing and Protocols 18 Other Ethernet Networks Switched Ethernet: –Switch isolates /


ECE 297 Concurrent Servers Process, fork & threads ECE 297.

(memory, devices, files) A unit of resource ownership (more general) In the OS processes are identified with unique IDs (process identifiers ( PID )) Sometimes also referred to as job, task, activity, … Background ECE 297 Process /switch time. This time is overhead ; The system does no useful work while switching. Needs to be small. Time depends on hardware support. Background ECE 297 Concurrency Apparent, simultaneous execution of multiple different processes in an interleaved fashion The context switching/


Computer Systems and Networks Foundation of the IT revolution! Dr. Alan D. George CSN Area Coordinator ECE Department 09/19/02.

switching Circuit switching Packet switching Packet switching LAN technology LAN technology LAN systems LAN systems Internet protocols Internet protocols Special class features Special class features Job Prospects After Graduation What do I do with my diploma? Employers Students with CSN specialization are among the most highly recruited in ECE/ devices and self-assembled nanostructures. Nanosystems research investigates biologically-inspired computing architectures that use novel nanoscale devices and/


Survey of Reconfigurable Logic Technologies

and ASIC Design with VHDL Programmable Logic Devices ECE 448 – FPGA and ASIC Design with VHDL First Programmable Logic Devices The Design Warrior’s Guide to FPGAs Devices, Tools, and Flows. ISBN 0750676043 Copyright © 2004 Mentor Graphics Corp. (www.mentor.com) ECE 448 – FPGA and ASIC Design with VHDL Programmable logic device as a black box Logic gates and programmable switches Inputs (logic variables) Outputs (logic functions/


Copyright 2004 Daniel J. Sorin

, split read trans., up to 4 per device Pipelined, but centralized arbitration, with several transaction lengths Address translation via mapping RAM in system bus interface I/O board acts like a processor to memory system ECE 259 / CPS 221 SUN Enterprise 6000 Overview/ cache on context switch Simple but performs poorly Address-space IDs (ASIDs) In architecture & part of context state Mapping-valid bit of Wang et al. Add mapping-valid as a “second” valid bit on L1 cache block On context switch do “flash clear/


Lecture 3: TI MSP430 Introduction

) (e.g., MC68HC11, MSP430) - small price - low power consumption - built-in memory - built-in I/O devices - high speed - long word size volume sold x 1 x 10 ECE 447: Microcontroller Applications Cars Engine fuel injection Transmission control Suspension and ride control Instrument display /: A bit of 0 configures the corresponding pin as an input, which is the power-on default. Writing a 1 switches the pin to an output. Discuss Example 2.3 from Davies: Why is it useful to provide separate register for input/


Solid State Devices Avik Ghosh Electrical and Computer Engineering

do they move? Midterm1 Hard Cover Basic Devices Midterm2 Final Why do we need this course? Transistor Switches 1947 2003 A voltage-controlled resistor Biological incentives Transistors in Biology: Ion channels in axons involve Voltage dependent Conductances Modeled using /architecture Chepren Pyramid, Giza (2530 BC) Build pyramidal quantum dots from InAs atoms (Gerhard Klimeck, Purdue) ECE 587/687 (Spring) Full quantum theory of nanodevices Carbon nanotubes, Graphene Atomic wires, nanowires, Point contacts,/


Resonant and Soft-Switching Techniques in Power Electronics ECEN 5817

receive your homework). Office hours Thursdays, 12:00 - 2:00 pm ECEE 1B65 Telephone office hour: Thursdays, 2:00 to 3:00 pm Mountain /Switching loss Energy is lost during the semiconductor switching transitions, via several mechanisms: Transistor switching times Diode stored charge Energy stored in device capacitances and parasitic inductances Semiconductor devices are charge controlled – controlling charge must be inserted or removed to switch a device Classical but misleading example: Transistor switching/


SPI Compatible Devices Design and implementation details on the way to a valid SPI-LCD interface driver.

the Blackfin to a LCD device? What commands are necessary to control the LCD device -- HD44780? 8/14/2015 SPI and LCD, Copyright M. Smith, ECE, University of Calgary, Canada/SWITCHES (LOGIC LAB) SLAVE INPUT INTERFACE SLAVE OUTPUT INTERFACE MOSIMISO SLAVE SELECT PF5 used (PF0 to PF7) DATA CONTROL SPI CLOCK LOAD Slave to LCD 8/14/2015 SPI and LCD, Copyright M. Smith, ECE/ we poll a bit and wait till ready, or can it be done in the background? How do we stop multiple commands from being accidentally sent to LCD/


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