04s_cpe422_hw4_solution

# 04s_cpe422_hw4_solution - The University of Alabama in...

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The University of Alabama in Huntsville Electrical & Computer Engineering CPE/EE 422/522 Spring 2004 Homework #4 Solution 8.1 See file hw_solutions/hw4/dt_product.vhd 8.2 See file hw_solutions/hw4/decode.vhd 8.4 See file hw_solutions/hw4/less.vhd 8.6 A <= transport 1 after 5 ns, 0 after 10 ns, Z after 15 ns; B <= transport 0 after 4 ns, Z after 10 ns; C <= A after 6 ns; C <= transport A after 5 ns; C <= reject 3 ns B after 4 ns; C2 <= B after 3 ns; C <= C2 after 1 ns; (a) Draw drivers for signals A and B Z Z After elaboration time = 0 A B Z Z After initialization time = 0 A B Z 0 Simulation step time = 4 ns A B 1 0 Simulation step time = 5 ns A B 0 Z Simulation step time = 10 ns A B Z Z Simulation step time = 15 ns A B 1±5 ±ns 0 10 ns Z 15 ns 0±4 Z 10 ns (b) Draw the three drivers s0, s1, and s2 for C. Assume that C drives an open-collector bus with a pull-up resistor.

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Z Z After elaboration time = 0 s0 s1 C2 s2 Z Z Z Z Simulation step time = 4 ns
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## This note was uploaded on 07/22/2011 for the course CPE 422 taught by Professor Staff during the Fall '09 term at University of Alabama - Huntsville.

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04s_cpe422_hw4_solution - The University of Alabama in...

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