SPRUJ52E June 2022 – September 2025 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4APE-Q1 , TDA4VH-Q1 , TDA4VP-Q1 , TDA4VPE-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 10-16 shows the MCU_NAVSS0 top-level block diagram.
Figure 10-16 MCU NAVSS
Top-Level Block DiagramMCU NAVSS functionality is similar to that of main NAVSS, however it is composed ot fewer peripherals and has reduced bandwidth.