System MMU View larger

System MMU


System MMU provides 2 main functions :

  • Virtual to physical address translation
  • Memory protection

System MMU upstream port can be directly connected to 1 master and used as a dedicated MMU or connected to multiple masters via an interconnect and so used as a shared MMU.

It allows non-CPU master to see contiguous memory space and remove the need to allocate fixed physical memory space or to manage memory fragmentation via a scatter-gather DMA.

Memory translation, attributes and validity information are contained in a set of translation tables located in downstream memory.

System MMU supports secure and non-secure context but doesn't support virtualization.

HDL: Verilog.
Verification Language: Python
CAD Tools (Open tools):

System MMU - Functional Specification

System MMU - Test Bench Description

System MMU - Delivery description

System MMU - Home directory