SPRACY6 July 2021 DRA821U , DRA829J , DRA829V , TDA4VM-Q1
Texas Instruments’ System Control Interface (TISCI) defines the communication protocol between various processing entities to the System Control Entity on TI SoCs. This is a set of message formats and sequence of operations required to communicate and get system services processed from the System Control Entity in the SoC.
TISCI protocol is used to talk to the SYSFW. For more information on this, see the TISCI user's guide.