E.PRAVEEN1 YVNM SARMA 2 03 07 EPRAVEEN1 YVNM SARMA 2The Advanced Peripheral Bus APB is a lowpower lowbandwidth bus that is part of the Advanced Microcontroller Bus Architecture AMBA developed by ARM It is widely used to connect lowspeed peripheral devices such as timers UARTs GPIOs SPI and IC controllers in SystemonChip SoC designs Since APB is responsible for communication between the processor and peripheral devices verifying its functionality is essential to ensure reliable data transfer and protocol compliance This project presents the verification of the APB protocol using the Universal Verification Methodology UVM UVM is a standardized verification framework built on SystemVerilog that enables the development of reusable scalable and modular verification environments The project implements a complete UVMbased testbench consisting of transaction objects sequences sequencer driver monitor agent environment scoreboard and functional coverage components to verify the APB design The verification environment generates both directed and randomized readwrite transactions to validate the APB protocol under different operating conditions The monitor captures the DUT activity while the scoreboard compares the expected and actual results to identify mismatches Functional coverage is collected to ensure that all important protocol features including read operations write operations valid address ranges wait states and transfer types are exercised during simulation Simulation results confirm that the APB design behaves according to the protocol specification with successful verification of all functional scenarios The UVMbased environment improves verification efficiency enhances code reusability and provides comprehensive functional coverage This project demonstrates an industrystandard verification approach for AMBA APB and serves as a strong foundation for verifying more complex bus protocols such as AHB and AXI Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026