Microsoft Word - Digital Logic Design v_4_6a
4.9. Problems Refer to http://www.EngrCS.com or online course page for complete solved and unsolved problem set. ...
Chapter 5. Sequential Circuit Design & Techniques 5.1. Key concepts and Overview Synchronous Finite State Machine Design ( ...
5.2. Synchronous Finite State Machine Design (Classical Design) Common Examples of Synchronous FSM Up and Down Binary Counte ...
EXAMPLE - Design a 2-bit binary up-counter with a ripple carry output (RCO) using D flip-flops. The input CLR’ is an asynchron ...
Step 2) Determine the number of flip-flop based on the number of states. For full encoding (#states = 4) ≤ 2 (#flip-flop = 2). S ...
Step 5) Draw the Circuit Schematic. Steps 6 & 7) Testing and hardware implementation will be skipped for this example. A S ...
All we need is the composite K-map for each of the desired outputs Y1+ ,Y2 +, Z: Step 5) Draw the Circuit Schematic A third ap ...
Step 2) Determine the number of flip-flop based on the number of State (#state = 3) ≤ 2 (#flip-flop = 2) Assuming Full Coding St ...
Draw the composite K-map for each of the desired outputs Y1+ ,Y2 +, Z: Step 5) Draw the Circuit Schematic Another Applicatio ...
Step 2) Determine the number of flip-flop based on the number of states (#states = 3) ≤ 2 (#flip-flop = 2) assuming full encodin ...
Step 5) Draw the Circuit Schematic Step 6) Test (with a test plan) Step 7) Implement Determining the Maximum Clock Frequency o ...
74LS08 AND gate tpcomb: Min at 3 ns and Max. at 18 ns 75LS175 D-flip-flop tpff: Min at 0 ns and Max. at 42 ns tsu: Min at 20 ...
5.3. State Assignment Encoding, Shift Register Counters, and Adding an Enable Input Full-encoding compared to one-hot encoding ...
Additional Types of Shift Registers: Parallel in/Parallel out Parallel in/Serial out Serial in/Parallel out Serial in/ ...
State Diagram for a three-bit (Y 1 Y 2 Y 3 ) Full-Encoded Stoppable Counter Most standard counters such as 74XX160, 74XX161, ...
Using Enable in Synchronous circuits In order to maintain the benefits of a synchronous system (avoiding clock glitches), it i ...
5.4. Inspection Design Methods for Finite State Machines The classical design methods are limited to a small number of inputs, s ...
Output Z0 Z1 By observing (or inspecting) all set transitions (Y1 =0 Y1 +=1) and all Hold 1 transitions (Y1 =1 Y1 +=1) w ...
Draw the Present/Next State Table Write the Excitation-Input Equations Di = Σ(PS.external input for set) + Σ(PS.external input ...
Ti’ = ∑ (PS .external input conditions for Hold 0) + ∑ (PS .external input conditions for hold 1) for i = 1,2,3,... Note: This m ...
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