'Elen 468advanced logic design' diaporamas de présentation

ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 19 VHDL. Introduction. VHDL V HSIC H ardware D escription L anguage VHSIC V ery H igh S peed I ntegrated C ircuit. Example. -- eqcomp4 is a four bit equality comparator -- Entity declaration entity eqcomp4 is

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ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 26 Interconnect Timing Optimization . x/2. x/2. R. C. rx/2. R. rx/2. cx/4. cx/4. cx/4. cx/4. C. ?t. x. Buffers Reduce Wire Delay. t_unbuf = R( cx + C ) + rx( cx/2 + C ) t_buf = 2R( cx/2 + C ) + rx( cx/4 + C ) + t b

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ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 23 Testing. Verifies correctness of design Performed by simulation, hardware emulation, or formal methods Performed prior to manufacturing. Verifies correctness of manufactured hardware Two-part process:

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ELEN 468 Advanced Logic Design

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ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 14 Synthesis of Sequential Logic . Synthesis of Sequential Logic: General. Event control of a cyclic behavior must be synchronized to a single edge of a single clock always @ ( posedge clock ) Different behaviors may be synchronized to

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ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 6 Delay Models. Delay Models. Propagation Delay. Xin. Xout. Xin. 50%Vdd. t. Xout. 50%Vdd. t. Tpd_1_0. Delay Models. Gate delay Intrinsic delay Layout-induced delay due to capacitive load Waveform slope-induced delay

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ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 15 Synthesis of Language Construct I. module and3( y, a, b, c ); input a, b, c; output y; wire y1; assign y1 = a & b; assign y = y1 & c; endmodule. An explicitly declared net may be eliminated in synthesis

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ELEN 468 Advanced Logic Design

ELEN 468 Advanced Logic Design. Lecture 12 Synthesis of Combinational Logic I. Synthesis. Logic synthesis Boolean descriptions => circuits RTL synthesis RTL descriptions => Boolean descriptions Behavioral synthesis Behavioral descriptions => RTL descriptions. Objective of Synthesis.

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