Download
logic design n.
Skip this Video
Loading SlideShow in 5 Seconds..
LOGIC DESIGN PowerPoint Presentation
Download Presentation
LOGIC DESIGN

LOGIC DESIGN

64 Views Download Presentation
Download Presentation

LOGIC DESIGN

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. LOGIC DESIGN SEUENTIAL CIRCUITS MODELLING AND MEMORY ELEMENTS Upgrade 2: June 2012 Ertuğrul Eriş

  2. EE33201 COURSE ASSESMENT MATRIX

  3. COMBINATONAL VS SEQUENTIAL CIRCUITS • 24 23 22 21 20 • t4 t3 t2 t1 t0 carry(elde)11000 • input(12) x1 0 1 1 0 0 • input(14) x20 1 1 1 0 • output(26) z 1 1 0 1 0 Ertuğrul Eriş

  4. SEQUENTIAL CIRCUITS MODELLING • Mathematical Madelling • State Table • State Diagram Ertuğrul Eriş

  5. ARDIŞIL DEVRELERİN GENEL YAPISI Ertuğrul Eriş

  6. GENERAL STRUCTURE OF SEQUENTIAL CIRCUITS Ertuğrul Eriş

  7. MATHEMATICAL MODEL • Independent variables • Input variables, (x1, …xn) • State variables (y1,…..yr) • N= number of states, n=number of state variables • n=log2N • N=2n • Dependent variables • Next state functions (Y1,Y2,…Yr) • Output functions (z1,z2,….zm) • Serial Adder • Yt+1= y' x1x2+y x'1x2+y x1x'2,+y x1x2 ve • Z = y' x'1,x2+y' x1x'2,+y x'1x'2+y x1x2 Ertuğrul Eriş

  8. STATE TABLE Ertuğrul Eriş

  9. STATE DIAGRAM Ertuğrul Eriş

  10. BLOK DIAGRAM OF SEQUENTIAL CIRCUIT Ertuğrul Eriş

  11. SYNCHRONOUS CLOCKED SEQUENTIAL CIRCUIT Ertuğrul Eriş

  12. GENERAL STRUCTURE OF SEQUENTIAL CIRCUITS Ertuğrul Eriş

  13. ARDIŞIL DEVRE GENEL YAPISI Ertuğrul Eriş

  14. SR MEMORY ELEMENT Ertuğrul Eriş

  15. ANALYSIS OF SR MEMORY ELEMENT t v Ertuğrul Eriş

  16. S*R* LATCH WITH NAND GATES In Mano NAND gates SR lacth, my notes S*R* Latch S*R* S* R* Ertuğrul Eriş

  17. MEMORY ELEMENTS PROBLEMS AND THEIR SOLUTIONS • In case of simultenous chage occur on both input varibles (for example 01→ 10), (00 or 11) forbidden inputs might be applied due to delays • Solution • 00(11, NAND) input (ineffective input)application between the inputs 01→00(11 NAND)→10, • Additional «CLOCK» Input Ertuğrul Eriş

  18. TWO VARIABLE’S (SR) VALUES CHANGE SIMULTANOUSLY Ertuğrul Eriş

  19. SR-LATCH MEMORY ELEMENT Memory element with clock(enable) input S* R* Ertuğrul Eriş

  20. D-DELAY(GEÇİKME) LATCH MEMORY ELEMENT S* R* Enable/clock. Could there be a delay memory element without a clock input? Ertuğrul Eriş

  21. JK- MEMORY LATCH Toggling for (11) input, how solved? Ertuğrul Eriş

  22. T- MEMORY ELEMENT LATCH Toggling for (1) input, how solved? Ertuğrul Eriş

  23. TOGGLING PROBLEM FOR JK AND T MEMORY ELEMENTS • During the clock pulse duration T and JK memory elements toggle many times for the inputs (1) and (11) rspectively. • Clock pulse duration becomes problem, • Solution • Edge triggered memory elements «Flip flops» Ertuğrul Eriş

  24. PULSE DURATION PROBLEM FOR SEQUENTIAL CIRCUITS Combinatinal circuit delay vs pulse duration SOLUTION: EDGE TRIGGERED MEMORY ELEMENT «FLIP FLOP» Ertuğrul Eriş

  25. LATCH vs FLIP FLOP • LATCH • No clock at all, • Level clock (Enable) • FLIP FLOP • EDGE-TRIGGERED-CLOCK-INPUT MEMORY ELEMENT Ertuğrul Eriş

  26. CLOCK RESPONSE IN LATCH AND FLIP FLOP Değişim yok Değişim olduğu an Ertuğrul Eriş

  27. T FLIP FLOP Ertuğrul Eriş

  28. DIFFERENT REPRESENTATION OF FLIP FLOP’s DEFINITION RELATION(CHARACTERISTIC TABLES) Ertuğrul Eriş

  29. MASTER-SLAVE D FLIP FLOP Number of elements and delay comparison? Ertuğrul Eriş

  30. MASTER SLAVE SR MEMORY ELEMENT Maliyet ve geçikme karşılaştırması? Ertuğrul Eriş

  31. D-TYPE POSITIVE-EDGE-TRIGGERED FLIP FLOP S* R* Number of gates and delay comparison? Ertuğrul Eriş

  32. D-TYPE POSITIVE-EDGE-TRIGGERED FLIP FLOP S* R* Ertuğrul Eriş

  33. SETLING/HLDING TIMES Oturma zamanı: Setling time Tutma zamanı: Holding time Ertuğrul Eriş

  34. GRAPHIC SYMBOL Ertuğrul Eriş

  35. D FLIP FLOP WITH ASYNCHRONOUS RESET S* R* Ertuğrul Eriş

  36. COMMERCIAL JK MEMORY ELEMENT Ertuğrul Eriş

  37. SEQUENTIAL CIRCUITS CLASSIFICATION SEQUENTIAL CIRCUIT SYNCRONOUS SEQUENTIAL CIRCUITS (with clok) ASYNCRONOUS SEQUENTIAL CIRCUITS (Without clock) Fundemental mode Pulse mode mode Ertuğrul Eriş

  38. PROGRAM DESIGN DEPT, PROGRAM G R A D U A T E S T U D E N T STUDENT P R OG R A M O U T C O M E S PROGRAM OUTCOMES P R OG R A M O U T C O M E S STATE, ENTREPRENEUR FIELD QALIFICATIONS EU/NATIONAL QUALIFICATIONS KNOWLEDGE SKILLS COMPETENCES NEWCOMERSTUDENT ORIENTIATION GOVERNANCE Std. questionnaire ALUMNI, PARENTS ORIENTIATION STUDENT PROFILE Std. questionnaire FACULTY NGO STUDENT, ??? CIRCICULUM ??? INTRERNAL CONSTITUENT Std. questionnaire EXTRERNAL CONSTITUENT EXTRERNAL CONSTITUENT REQUIREMENTS EU/NATIONAL FIELD QUALIFICATIONS PROGRAM OUTCOMES QUESTIONNAIRES QUALITY IMP. TOOLS GOAL: NATIONAL/INTERNATIONAL ACCREDITION

  39. BLOOM’S TAXONOMYANDERSON AND KRATHWOHL (2001) !!Listening !! Doesn’t exits in the original!!! http://www.learningandteaching.info/learning/bloomtax.htm Ertuğrul Eriş

  40. ULUSAL LİSANS YETERLİLİKLER ÇERÇEVESİ BLOOMS TAXONOMY Ertuğrul Eriş

  41. COURSE ASSESMENT MATRIX LEARNING OUTCOMES Ertuğrul Eriş