digital logic concepts and combinational logic design

... Lecture 2-14 Logic gates and networks • Each basic logic operation (AND, OR, NOT) can be implemented resulting in a circuit element called a logic gate • A logic gate has one or more inputs and one ... 3-17 ECE380 Digital Logic Introduction to Logic Circuits: Synthesis using AND, OR, and NOT gates Electrical & Computer Engineering Dr D J Jackson Lecture 4-1 Example logic circuit design • Assume ... – – – AND OR NOT NAND, logical AND logical OR logical NOT NOR, XOR, XNOR (covered later) • Assignment operator

Ngày tải lên: 27/03/2014, 20:00

... ieee.std _logic_ 1164.ALL; ENTITY and2 gate IS PORT( i1, i2: IN STD _LOGIC; 24 y Digital Logic and Microprocessor Design with VHDL Chapter - Designing Microprocessors o: OUT STD _LOGIC) ; END and2 gate; ... AND V; term_2

Ngày tải lên: 17/03/2014, 17:20

Ngày tải lên: 19/03/2014, 21:20

... ieee.std _logic_ 1164.ALL; ENTITY and2 gate IS PORT( i1, i2: IN STD _LOGIC; 24 y Digital Logic and Microprocessor Design with VHDL Chapter - Designing Microprocessors o: OUT STD _LOGIC) ; END and2 gate; ... AND V; term_2

Ngày tải lên: 19/03/2014, 21:20

Ngày tải lên: 08/05/2014, 14:21

... COMBINATIONAL LOGIC DESIGN 4.1 Basic Concepts 4.2 Analysis of a Combinational Logic Circuit 4.3 Design of a Combinational Circuit 4.4 Multiple-Output Combinational Circuits 4.5 Typical Combinational ... microprocessors in C and assembly languages Three design levels are covered in this book: device level, logic level, and system level Device-level design, which designs logic gates such as AND, OR, and NOT ... Fundamentals of digital logic and microcomputer design / M Rafiquzzamm-5th ed p cm Includes bibliographical references and index ISBN 0-471-72784-9 (cloth) Logic circuits Microcomputers -Design and construction...

Ngày tải lên: 01/06/2014, 10:12

Ngày tải lên: 05/07/2014, 08:20

... Data: Miczo, Alexander Digital logic testing and simulation / Alexander Miczo—2nd ed p cm Rev ed of: Digital logic testing and simulation c1986 Includes bibliographical references and index ISBN ... proposed changes THE DESIGN PROCESS Concept Allocate resources Behavioral design RTL design Logic design Physical design Mfg Figure 1.2 Design flow After a product has been defined and a decision has ... control, and communications in myriad applications With contemporary EDA tools, one logic designer can create complex digital designs that formerly required a team of a half dozen logic designers...

Ngày tải lên: 09/08/2014, 16:20

... positive logic convention will be used Any voltage between ground (Gnd) and +0.8 V represents a logic A voltage between +2.4 V and +5.0 V (Vcc) represents a logic A voltage between +0.8 V and +2.4 ... input is arbitrarily selected and required to generate a logic 1, then the upper AND gate must generate a logic 1, requiring that inputs X1 and X2 must both be at logic As before, a known value ... during simulation and, as a result, fault simulation time was considerably less Where pseudo-random vectors are generated and applied to combinational logic, a cursory examination and rearrangement...

Ngày tải lên: 09/08/2014, 16:20

... gate Q if ((OR/NAND and C_O == 1) or (AND/ NOR and C_O == 0)) choose new objective net n; //input to Q // n = X, and EASIEST to control else // ((OR/NAND and C_O == 0) or (AND/ NOR and C_O == 1)) ... Q // n = X, and HARDEST to control } if (Q == NAND/NOR) //complement the current //objective level objective level = -(C_O logic level); else //Q is AND/ OR objective level = C_O logic level; ... assign a Logic values assigned during backtrace depend on (a) the function of the logic gate through which the backtrace passes and (b) the value required at the output of that gate For an AND/ NAND...

Ngày tải lên: 09/08/2014, 16:20

... highlights and concepts involved in applying test stimuli to digital circuits and monitoring their response Space does not permit a Digital Logic Testing and Simulation, Second Edition, by Alexander ... the ICs and PCBs being tested, it became prohibitively expensive to design and build these testers Companies were formed for the explicit purpose of designing and building complex testers and, although ... However, more importantly, designers must understand testability problems and design circuits for which tests can be created with existing tools In other words, they must design testable circuits...

Ngày tải lên: 09/08/2014, 16:20

... Simulation The advent of RTL logic design and the resulting reliance on logic synthesis has had a major impact on design styles and productivity By expressing a design at a 362 DEVELOPING A TEST ... or hundreds of thousands of logic gates and numerous complex state machines engaged in extremely detailed and sometimes lengthy “hand-shaking” sequences tend to be quite random-resistant, meaning ... The 16 faults now appear as SA0 and SA1 faults on the outputs of P and R and on each of the three inputs to S and T The SA0 faults at the inputs of AND gates S and T are equivalent to a single...

Ngày tải lên: 09/08/2014, 16:20

... problem for scan Memory and analog circuits must be isolated from the digital logic, circuit partitioning becomes critical, and testing strategies for memories and random logic must now coexist ... discipline imposed either by the logic designers or by some designated testability supervisor LSSD, by requiring that designs be entered into a design data base via design automation programs that ... shadow logic between scan registers and memory.19 This is combinational logic that can not be directly accessed by the scan circuits If the shadow logic consists solely of addressing logic, then...

Ngày tải lên: 09/08/2014, 16:20

... applied and there is a high degree of confidence that the test circuits are working properly, the logic test mode is entered STUMPS applies stimuli to the combinational logic on the module and creates ... reliability standard called Self-Monitoring, Analysis and Reporting Technology (SMART) This standard provides for on-drive sensing hardware for reporting drive status and software to collect and intrepret ... C and D have the property that C ≥ D and D ≥ C In that case A ≡ B and A and B are said to be indistinguishable This would be the case, for example, if two devices were connected in series and...

Ngày tải lên: 09/08/2014, 16:20

... of co -design and co-verification.* Co -design simultaneously designs the hardware and software components of a system, whereas co-verification simultaneously executes and verifies the hardware and ... analysis the logic designer must understand the design and verify that the design implements the specification, rather than his subjective interpretation of the specification 12.4.2 Design Error ... can occur in a single MOS transistor:4 fGS gate and source fGD gate and drain fSD source and drain fBS bulk and source fBD bulk and drain fBD bulk and gate SELECTING VECTORS 555 Gate Source Drain...

Ngày tải lên: 09/08/2014, 16:20

... a logic AND on two arguments X and Y, and a fault in the control section causes an OR operation to be selected Then, for the values Xi = and Yi = 1, the fault-free circuit responds with a and ... then DEPOT could go in and generate test vectors for the remaining undetected faults 12.9 DESIGN VERIFICATION In the early days of digital IC design, manufacturing test and design verification shared ... f and g, to perform Apply(⊕, Bf , Bg ), where Bf and Bg are the ROBDDs for the functions f and g The comparison of two circuits f and g is accomplished by comparing cones of combinational logic...

Ngày tải lên: 09/08/2014, 16:20

... concentration Na and donor concentration Nd) along B-B’ in (b) (e) Band diagram illustrating the band-to-band tunneling of electrons along A-A’ in (a) (f) Band diagram illustrating the band-toband tunneling ... and f c (E ) are the Fermi-Dirac distribution functions, and g c (E ) and g v (E ) are the density-of-states in the conduction band and the valence band, respectively According to Eqs (1.2) and ... (HH), and spin-orbit split-off bands, and the tensile strain in Si splits Ec into Δ2 and Δ4, causing the reduction in BTBT barrier and leading to higher Ion of TFET 54 Fig 3.13 Band-to-band...

Ngày tải lên: 10/09/2015, 09:24

... Continuous and Discrete Signals and Systems, Prentice-Hall, 1990 L R Rabiner and B Gold, Theory and Application of Digital Signal Processing, Prentice-Hall, 1975 E C Ifeachor and B W Jervis, Digital ... science and engineering, and advances in technologies such as the design and manufacturing of very large scale integration (VLSI) chips The number of devices, systems, and applications of digital ... from digital filters: Transition bands much smaller than what can be achieved from analog filters; an example would be a lowpass filter with a bandwidth of 5000 Hz and a passband ripple of 0.5 dB, and...

Ngày tải lên: 13/09/2012, 10:21

... Continuous and Discrete Signals and Systems, Prentice-Hall, 1990 L R Rabiner and B Gold, Theory and Application of Digital Signal Processing, Prentice-Hall, 1975 E C Ifeachor and B W Jervis, Digital ... analyzers and synthesizers, vocoders (voice recorders), and similar devices, extremely low tolerances on the magnitude and phase responses over adjacent passbands are required, and digital filters ... A, ω0 and φ: h(n) = {2.00 0.00 − 2.00 − 0.00} REFERENCES S K Mitra and J F Kaiser, Handbook for Digital Signal Processing, WileyInterscience, 1993, Chapter J G Proakis and D G Manolakis, Digital...

Ngày tải lên: 29/09/2013, 21:20