That's the difference between an MMU and MPU. The first (MMU) adds virtual memory to the story, while the second (MPU) simply protects certain areas of memory.

That's the difference between an MMU and MPU. The first (MMU) adds virtual memory to the story, while the second (MPU) simply protects certain areas of memory. https://www.geeksforgeeks.org/whats-difference-between-mmu-and-mpu/ https://www.geeksforgeeks.org/whats-difference-between-mmu-a...