1. Loop over the elements in the RF Attenuation List

   1. Loop over the elements in the Baseband Attenuation List

      1. If we've written less than 0x40 gain values

         1. Take the current Baseband Attenuation List value, left shift by 8

         2. If the Radio Revision is 8
            1. Bitwise OR the previous value with 0x50
         3. Otherwise
            1. Bitwise OR the previous value with 0x40

         4. Bitwise OR the result of the last operation with the current RF Attenuation List value

         5. Write the resulting value to PHYRegister 0x3C0 + the number of gain values written already

Otherwise, write 0 to PHYRegister 0x3FF