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LOGIC DESIGN. SEUENTIAL CIRCUITS MODELLING AND MEMORY ELEMENTS. Upgrade 2: June 2012. EE33201 COURSE ASSESMENT MATRIX. COMBINATONAL VS SEQUENTIAL CIRCUITS. 2 4 2 3 2 2 2 1 2 0 t 4 t 3 t 2 t 1 t 0 carry (elde ) 1 1 0 0 0 input(12) x 1 0 1 1 0 0 input(14) x 2 0 1 1 1 0
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LOGIC DESIGN SEUENTIAL CIRCUITS MODELLING AND MEMORY ELEMENTS Upgrade 2: June 2012 Ertuğrul Eriş
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
SEQUENTIAL CIRCUITS MODELLING • Mathematical Madelling • State Table • State Diagram Ertuğrul Eriş
ARDIŞIL DEVRELERİN GENEL YAPISI Ertuğrul Eriş
GENERAL STRUCTURE OF SEQUENTIAL CIRCUITS Ertuğrul Eriş
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
STATE TABLE Ertuğrul Eriş
STATE DIAGRAM Ertuğrul Eriş
BLOK DIAGRAM OF SEQUENTIAL CIRCUIT Ertuğrul Eriş
SYNCHRONOUS CLOCKED SEQUENTIAL CIRCUIT Ertuğrul Eriş
GENERAL STRUCTURE OF SEQUENTIAL CIRCUITS Ertuğrul Eriş
ARDIŞIL DEVRE GENEL YAPISI Ertuğrul Eriş
SR MEMORY ELEMENT Ertuğrul Eriş
ANALYSIS OF SR MEMORY ELEMENT t v Ertuğrul Eriş
S*R* LATCH WITH NAND GATES In Mano NAND gates SR lacth, my notes S*R* Latch S*R* S* R* Ertuğrul Eriş
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
TWO VARIABLE’S (SR) VALUES CHANGE SIMULTANOUSLY Ertuğrul Eriş
SR-LATCH MEMORY ELEMENT Memory element with clock(enable) input S* R* Ertuğrul Eriş
D-DELAY(GEÇİKME) LATCH MEMORY ELEMENT S* R* Enable/clock. Could there be a delay memory element without a clock input? Ertuğrul Eriş
JK- MEMORY LATCH Toggling for (11) input, how solved? Ertuğrul Eriş
T- MEMORY ELEMENT LATCH Toggling for (1) input, how solved? Ertuğrul Eriş
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
PULSE DURATION PROBLEM FOR SEQUENTIAL CIRCUITS Combinatinal circuit delay vs pulse duration SOLUTION: EDGE TRIGGERED MEMORY ELEMENT «FLIP FLOP» Ertuğrul Eriş
LATCH vs FLIP FLOP • LATCH • No clock at all, • Level clock (Enable) • FLIP FLOP • EDGE-TRIGGERED-CLOCK-INPUT MEMORY ELEMENT Ertuğrul Eriş
CLOCK RESPONSE IN LATCH AND FLIP FLOP Değişim yok Değişim olduğu an Ertuğrul Eriş
T FLIP FLOP Ertuğrul Eriş
DIFFERENT REPRESENTATION OF FLIP FLOP’s DEFINITION RELATION(CHARACTERISTIC TABLES) Ertuğrul Eriş
MASTER-SLAVE D FLIP FLOP Number of elements and delay comparison? Ertuğrul Eriş
MASTER SLAVE SR MEMORY ELEMENT Maliyet ve geçikme karşılaştırması? Ertuğrul Eriş
D-TYPE POSITIVE-EDGE-TRIGGERED FLIP FLOP S* R* Number of gates and delay comparison? Ertuğrul Eriş
D-TYPE POSITIVE-EDGE-TRIGGERED FLIP FLOP S* R* Ertuğrul Eriş
SETLING/HLDING TIMES Oturma zamanı: Setling time Tutma zamanı: Holding time Ertuğrul Eriş
GRAPHIC SYMBOL Ertuğrul Eriş
D FLIP FLOP WITH ASYNCHRONOUS RESET S* R* Ertuğrul Eriş
COMMERCIAL JK MEMORY ELEMENT Ertuğrul Eriş
SEQUENTIAL CIRCUITS CLASSIFICATION SEQUENTIAL CIRCUIT SYNCRONOUS SEQUENTIAL CIRCUITS (with clok) ASYNCRONOUS SEQUENTIAL CIRCUITS (Without clock) Fundemental mode Pulse mode mode Ertuğrul Eriş
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
BLOOM’S TAXONOMYANDERSON AND KRATHWOHL (2001) !!Listening !! Doesn’t exits in the original!!! http://www.learningandteaching.info/learning/bloomtax.htm Ertuğrul Eriş
ULUSAL LİSANS YETERLİLİKLER ÇERÇEVESİ BLOOMS TAXONOMY Ertuğrul Eriş
COURSE ASSESMENT MATRIX LEARNING OUTCOMES Ertuğrul Eriş