SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
MCU Navigator Subsystem (MCU NAVSS) has a subset of the modules of the main NAVSS and is instantiated in the MCU domain.
MCU Navigator Subsystem consists of DMA/Queue Management components – UDMA and Ring Accelerator (UDMASS), and Peripherals (Module subsystem [MODSS]).
UDMASS – UDMASS is the essential part of the TI Data Movement Architecture. UDMASS consists of:
MODSS – MODSS is a collection of peripherals with different system-level functions. NAVSS0 contains the following modules:
ECC aggregators – for SEC/DED memory protection.
Figure 10-23 shows the MCU_NAVSS0 top-level block diagram.
MCU NAVSS functionality is similar to that of main NAVSS, however it is composed ot fewer peripherals and has reduced bandwidth. This chapter describes the integration and parameters specific for MCU NAVSS.