SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
After loading the FW, the embedded FW takes approximately 2ms to complete the INIT phase and start running. The EDP_CORE_KEEP_ALIVE_P register specifies whether the FW is running.
KEEP_ALIVE – The EDP_CORE_KEEP_ALIVE_P register is a counter initialized to 0 after reset and incremented by the FW on any scheduler loop.
When a valid FW is running, this register will be changed on every FW Scheduler loop (< 2ms). The host processor may use the mailbox channel immediately after reset, FW will response after the completion of INIT phase.
Operational mode
After completion of boot sequence, the FW set the MHDPTX Controller in a standby mode. In the standby mode, it is ensured that no transaction is executed over the external interfaces (that is, AUX, PHY, Video).
Switching into active mode is done by executing the GENERAL_MAIN_CONTROL command.