TPS650332-Q1: How to lock/unlock the Control Registers and Configuration Registers

Part Number: TPS650332-Q1

Tool/software:

Hi team:

I want to  lock/unlock the Control Registers and Configuration Registers ,and get lock/unlock status.

But when i write 0xDD to register 0x2h and 0xAA to register 0x5h, when i read register 0x2Ah, it shows "reg_0x2A = 0x0D", which means "Write access not allowed based on CONTROL_LOCK Register and CONFIG_LOCK Register".

Is there anything wrong with my steps of read or write the "lock/unlock registers"?