This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

[FAQ] TDA4VM: How to check if R5F is in lock-step or split mode

Part Number: TDA4VM

How can I check if R5F is running in lock-step or split mode? Is there some register I can look at?

  • The c15, Build Options 2 register can be used to check this.

    To view this register we can use CP15 registers from System Registers.

    Registers -> System_Registers -> CP15_BUILD_OPTIONS_2 register. The bit 30 (LOCK_STEP) here denotes if the R5F is in Lock-step or split mode. 

    30th Bit:

    0 :: Split mode

    1 :: Lock step mode