SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The PBIST architecture consists of a small coprocessor with a dedicated instruction set targeted specifically toward testing memories. This coprocessor executes test routines stored in the PBIST ROM and runs them on multiple on-chip memory instances. The on-chip memory configuration information is also stored in the PBIST ROM. The testing is done in parallel for each of the CPU data RAMs, while it is done sequentially for the rest of the memories.
The PBIST Controller architecture offers significant advantages over tests running on the main Cortex-R5F processor (application software-based testing):