SPRUIN7C March 2020 – March 2024 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1
The external host can only configure the HIC registers and read the status in Mailbox Access Mode. The HIC control and status registers reside in the first 128 bytes of the HIC memory-mapped region.