|
Bridging Fault
In electronic engineering, a bridging fault consists of two signals that are connected when they should not be. Depending on the logic circuitry employed, this may result in a wired-OR or wired-AND A wired logic connection is a logic gate that implements boolean algebra (logic) using only passive components such as diodes and resistors. A wired logic connection can create an AND gate, AND or an OR gate. The limitations are the inability t ... logic function. Since there are O(n^2) potential bridging faults, they are normally restricted to signals that are physically adjacent in the design. Modeling bridge fault Bridging to VDD or Vss is equivalent to stuck at fault model. Traditionally bridged signals were modeled with logic AND or OR of signals. If one driver dominates the other driver in a bridging situation, the dominant driver forces the logic to the other one, in such case a ''dominant bridging fault'' is used. To better reflect the reality of CMOS VLSI devices, a ''domina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Engineering
Electronics engineering is a sub-discipline of electrical engineering which emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current flow. Previously electrical engineering only used passive devices such as mechanical switches, resistors, inductors and capacitors. It covers fields such as: analog electronics, digital electronics, consumer electronics, embedded systems and power electronics. It is also involved in many related fields, for example solid-state physics, radio engineering, telecommunications, control systems, signal processing, systems engineering, computer engineering, instrumentation engineering, electric power control, robotics. The Institute of Electrical and Electronics Engineers (IEEE) is one of the most important professional bodies for electronics engineers in the US; the equivalent body in the UK is the Institution of Engineering and Technology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logic Circuit
A logic gate is an idealized or physical device implementing a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device (see Ideal and real op-amps for comparison). Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using vacuum tubes, electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. Now, most logic gates are made from MOSFETs (metal–oxide–semiconductor field-effect transistors). With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wired-OR
A wired logic connection is a logic gate that implements boolean algebra (logic) using only passive components such as diodes and resistors. A wired logic connection can create an AND or an OR gate. The limitations are the inability to create a NOT gate and the lack of level restoration. The wired AND connection The wired AND connection is a form of AND gate. It uses a pull up resistor and one diode per input to create this function. In this example diagram 5V is considered logic HIGH (TRUE), and 0V is LOW (FALSE). The voltage on ''output C'' will be HIGH only when ''input sources A'' AND ''B'' are HIGH. If either input is LOW, output C will measure LOW. Usefully, an AND gate can have an arbitrary number of inputs. The behaviour of logic gates is often described by a truth table:M. Morris Mano, ''Digital Logic and Computer Design'', Prentice-Hall, 1979 , page 571 The LOW state output voltage C will be approx 0.5V, due to the diodes' forward voltage. Output C would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wired-AND
A wired logic connection is a logic gate that implements boolean algebra (logic) using only passive components such as diodes and resistors. A wired logic connection can create an AND gate, AND or an OR gate. The limitations are the inability to create a NOT gate, NOT gate and the lack of level restoration. The wired AND connection The wired AND connection is a form of AND gate. It uses a pull up resistor and one diode per input to create this function. In this example diagram 5V is considered logic HIGH (TRUE), and 0V is LOW (FALSE). The voltage on ''output C'' will be HIGH only when ''input sources A'' AND ''B'' are HIGH. If either input is LOW, output C will measure LOW. Usefully, an AND gate can have an arbitrary number of inputs. The behaviour of logic gates is often described by a truth table:M. Morris Mano, ''Digital Logic and Computer Design'', Prentice-Hall, 1979 , page 571 The LOW state output voltage C will be approx 0.5V, due to the diodes' forward voltag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design Automation And Test In Europe
A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process or the result of that plan or specification in the form of a prototype, product, or process. The verb ''to design'' expresses the process of developing a design. In some cases, the direct construction of an object without an explicit prior plan (such as in craftwork, some engineering, coding, and graphic design) may also be considered to be a design activity. The design usually has to satisfy certain goals and constraints; may take into account aesthetic, functional, economic, or socio-political considerations; and is expected to interact with a certain environment. Typical examples of designs include architectural and engineering drawings, circuit diagrams, sewing patterns and less tangible artefacts such as business process models. Designing People who produce designs are called ''designers''. The term 'designer' generally refers to someone who wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Wired-OR")
