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Sequential Circuits ( Introduction )

Sequential Circuits ( Introduction ). Index. I Introduction. II D flip flop. III VHDL for a D flip flop. IV T flip flop. I. Introduction. A sequential circuit is dependent on both the current and the past inputs of the system .

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Sequential Circuits ( Introduction )

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  1. SequentialCircuits (Introduction)

  2. Index IIntroduction II D flipflop IIIVHDL for a D flipflop IVT flipflop

  3. I. Introduction Asequentialcircuitisdependentonboththecurrent and thepast inputs of thesystem . In ordertorememberthehistory of the inputs, sequentialcircuitsmusthavememoryelements. Flip-flopsare thebasicmemoryelementsforstoringinformation. They are the fundamental building blocks of sequentialcircuits. A single flipflop can storeonlyone bit of information. In ordertosynchronizeallstatechangesitisrequired a clocksignal

  4. II. D Flip-flop Whentheclockiseither 0 or 1, theflipflopretainsitscurrentvalue Thesmalltriangleindicatesthattheflip-flopistriggeredbytherisingedge of theclock

  5. II. D Flip-flop StateDiagram Itportraysgraphicallytheoperation of theflip-flop

  6. III. VHDL for a D flip-flop

  7. IV. T Flip-flop When T isasserted (T = 1) theflipfloptoggles at each active edge of theclock and when T is de-asserted , theflipflopkeepsitscurrentstate.

  8. Continuousassessment Assessment takes into account: group work and individual learning - Problem-solving exercises  30 % - Group e-Portfolio  15 % - Applied project  20 % - Basic knowledge tests  25 % - Attitude and participation  10 % Group work Individual work

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