The Device Service Unit (DSU) detects external debug probes connected through the Debug Access Port (DAP) pins providing access to the MCU debug capabilities. The services provided by the DSU include:
Basic debugging functionality and device programming from a programmer/debugger connected via a 2-pin Serial Wire Debug (SWD) Interface. This basic debugging capability includes the ability to disable and enable the Micro Trace Buffer (MTB).
32-bit Cyclic Redundancy Check (CRC) checking for all Advanced High-performance Bus (AHB) connected memory modules
Full chip erase
Built-in memory self-test (MBIST) meeting IEC60730 Class B specifications
DSU Configuration
There are no use-programmable configurations for the DSU. We highly recommended that you consult the device datasheet for specifics on reading the CoreSight address register settings.
If you need to work with Microchip Support staff directly, you can submit a technical support case. Keep in mind that many questions can be answered through our self-help resources, so this may not be your speediest option.
