hw9 - The Hong Kong University of Science and Technology...

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Unformatted text preview: The Hong Kong University of Science and Technology Department of Electronic and Computer Engineering ELEC151 – Digital Circuit and Systems Homework 9 ** Self practice (No need to hand in) 1. List the PLA programming table for the BCD-to excess-3-code converter whose Boolean functions are simplified in Fig. 4-3 of your text book 2. Repeat Problem #1 using a PAL. 3. Modify the PAL diagram of Fig. 7-16 by including three clocked D-type flip-flops between the OR gates and outputs as in Fig. 7-19. The diagram should conform with the block diagram of a sequential circuit. This will require three additional buffer-inverter gates and six vertical lines for the flip-flop outputs to be connected to the AND array through programmable connections. Using the modified registered PAL diagram, show the fuse map that will implement a 3- bit binary counter with an output carry. 4. ESTIMATE the typical gate count of the logic that the P22V10 PAL (shown below) can implement. How many programming elements are there in the P22V10 PAL? P22V10 PAL?...
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This note was uploaded on 09/16/2010 for the course ELEC 151 taught by Professor Cy during the Spring '10 term at HKUST.

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hw9 - The Hong Kong University of Science and Technology...

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