1111 Sequence Detector Mealy Machine (Overlapping) | State Diagram & Verilog Code in Telugu

Namaste! In this tutorial, I explained the complete design process of a 1111 Sequence Detector using a Mealy Finite State Machine (FSM). We specifically focused on Overlapping logic, which is a common requirement in digital logic design and VLSI interviews. What is covered in this video: Logic Explanation: Why we need 4 states (S_0, S_1, S_2, S_3) for a 4-bit sequence. State Diagram: Step-by-step drawing of the Mealy state transitions for a 1111 pattern. Overlapping vs. Non-Overlapping: Why the machine returns to S_3 instead of S_0 after a successful detection. Verilog HDL Code: Writing the module using always @(posedge clk), case statements, and the ternary operator (? :) for the Mealy output logic. Technical Highlights: Machine Type: Mealy (Output depends on both Current State and Input). Sequence: 1111 (Binary). Logic Style: Overlapping. Language: Telugu (తెలుగు).