The MMU works with the L1 and L2 memory system to translate virtual addresses to physical addresses. It also controls accesses to and from external memory. See the ARM Architecture Reference Manual for a full architectural description of the MMU.

The processor implements the ARMv7-A MMU enhanced with TrustZone features to provide address translation and access permission checks. The MMU controls table walk hardware that accesses translation tables in main memory. The MMU enables fine-grained memory system control through a set of virtual-to-physical address mappings and memory attributes held in instruction and data TLBs.

The MMU features include the following: