omplete the timing diagram for the gated latch shown below. Toler DEX S R EN
omplete the timing diagram for the gated latch shown below. Toler DEX S R EN
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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Transcribed Image Text:The image depicts a timing diagram and the logic schematic for a gated latch. Here's a detailed transcription and explanation suitable for an educational website:
**Schematic Description:**
The schematic shows a gated latch circuit composed of:
- Two AND gates
- Two NOR gates
Inputs:
- S (Set)
- R (Reset)
- EN (Enable)
Outputs:
- Q
- \(\overline{Q}\)
The Set (S) and Reset (R) inputs are passed through the EN (Enable) signal using the AND gates. The outputs from these AND gates feed into the NOR gates, creating a bistable latch.
**Timing Diagram Explanation:**
The timing diagram illustrates the states of the inputs (S, R, EN) and output (Q) over a sequence of time intervals, represented as time slots in a grid format.
- **S (Set):** The top row in the grid indicates the high and low states of the Set input over time.
- **R (Reset):** The second row shows the transitions of the Reset input.
- **EN (Enable):** The third row displays the Enable signal's timing.
- **Q (Output):** Initially low, it represents the output state transitioning based on the inputs and logic gate interactions.
The diagram demonstrates how the gated latch transitions in response to changes in S, R, and EN. As EN is high, the states of S and R affect the output Q, switching it between high and low according to the typical gated latch operation.
**Note:** The label at the bottom mentions that "Q is initially LOW," indicating the starting condition for the output before the timing sequence begins.
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