Complete the following characteristic table for the circuit below: You need explain how you got the answers. A(t) B(t) A(t+1) B(t+1) 1 1 1 A В
Complete the following characteristic table for the circuit below: You need explain how you got the answers. A(t) B(t) A(t+1) B(t+1) 1 1 1 A В
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
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
Transcribed Image Text:### Completing the Characteristic Table for a Flip-Flop Circuit
In this task, we are asked to fill in the characteristic table for a given digital circuit involving logic gates and flip-flops. The characteristic table is a tool that helps us understand the state transitions of the circuit over time.
### Circuit Description
The circuit diagram provided contains the following components:
- An OR gate.
- A JK flip-flop labeled A.
- A D flip-flop labeled B.
- Connecting wires indicating the flow of the signal.
### Components Explanation
**OR Gate:**
- The OR gate has two inputs: \( X \) and an unknown signal.
**JK Flip-Flop:**
- The JK flip-flop has inputs J and K and output \( Q \), which is labeled as \( A \) in the diagram.
- The next state \( A(t+1) \) is determined by the inputs J and K according to the functioning of the JK flip-flop:
- J = 0, K = 0 → No Change
- J = 0, K = 1 → Reset
- J = 1, K = 0 → Set
- J = 1, K = 1 → Toggle
**D Flip-Flop:**
- The D flip-flop has input D and output \( Q \), labeled as \( B \).
- The next state \( B(t+1) \) is directly determined by the input:
- \( B(t+1) = D \)
### Completing the Table
We need to fill in the characteristic table based on the states of the flip-flops and the input signal \( X \):
| X | A(t) | B(t) | A(t+1) | B(t+1) |
|:-:|:----:|:----:|:------:|:------:|
| 0 | 1 | 1 | ? | ? |
| 1 | 0 | 1 | ? | ? |
### Detailed Analysis
1. **For \( X = 0, A(t) = 1, B(t) = 1 \):**
- Output of the OR gate is \( 0 OR 1 = 1 \).
- JK Flip-flop:
- Input J is connected to \( B \); J =
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