Memory Management Unit (Mmu) Using Verilog Hdl
Keywords:
Memory Management Unit (MMU), Virtual Address Translation, Physical Address Mapping, Translation Lookaside Buffer (TLB), Page Table, Verilog HDL, Hardware Design, Digital System Simulation, Computer Architecture, Memory ManagementAbstract
The Memory Management Unit (MMU) is a crucial component in modern computer systems that is responsible
for translating virtual addresses generated by the CPU into physical addresses used by the main memory. This
project presents the design and simulation of a simplified Memory Management Unit using Verilog Hardware
Description Language (HDL). The primary objective of this work is to demonstrate the process of virtual to
physical address translation using key components such as the Translation Lookaside Buffer (TLB) and Page
Table. In this design, the TLB is used as a high-speed cache to store recent address mappings, thereby reducing
memory access time. When a virtual address is generated, the MMU first checks the TLB for a match. If a match
is found (TLB hit), the corresponding physical address is obtained directly. If no match is found (TLB miss), the
system accesses the page table to retrieve the required physical page number and updates the TLB for future use.
The entire system is modeled and simulated using Verilog HDL, and the results are verified through waveform
analysis using simulation tools. The output waveforms clearly demonstrate the behavior of TLB hit and miss
conditions along with correct address translation. This project effectively illustrates the fundamental working of
memory management in a simplified manner and provides a strong foundation for understanding real-world
MMU architectures.
