Answered: Draw the high level state machine and…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Draw the high level state machine and data path for: an elevator that can move between floors 1 and 20 of a building. The destination of the elevator can be set by pressing the button for a specific floor, the value representing the desired floor is F. Once the value of F is input, if the current level C is greater than F the elevator will descend one floor per clock cycle. If the C is less than F, the elevator will ascend one floor per clock cycle. If C is equal to F, the elevator will not move. If there is no desired floor currently input, the elevator will remain idle until a floor is selected. Assume the elevator initial starts at level 1. The elevator cannot go below floor 1 or above floor 20. For any multibit inputs, outputs, or variables, state how many bits are needed.

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