SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The microprocessor unit (MPU) has a 32-bit address port, which allows it to handle a 4-GiB space divided into several regions, depending on the target type.
The memory map has the following features that are shared among the initiators, such as the MPU subsystem:
The GPMC and DMM are dedicated to memory connection. The GPMC is used for NOR and NAND flash and static random access memories (SRAMs). The DMM is used for synchronous dynamic random access memories (SDRAMs), such as DDR. For more information, see Section 15.2, Dynamic Memory Manager, and Section 15.3, EMIF Controller.
The L3 interconnect allows the sharing of resources, such as peripherals and external or on-chip memories, among all the initiators of the platform. The L4 interconnects control access to the peripherals.
Transfers across the platform between initiators and targets are physically conditioned by the chip interconnect and can be logically conditioned by firewalls. For more information about the intercommunication (L3 and L4 interconnects) and protection mechanisms implemented in the device, see Section 14.2, L3 Interconnect, and Section 14.3, L4 Interconnect.
Figure 2-1 shows the interconnect of the device and the main modules and subsystems in the platform.