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TAS5755M: TAS5755M register

Darren Yang
Expert 2000 points
Part Number: TAS5755M

Hi sir

we have  above questions need your support,pls help check it,tks!

(1)Is the 0x39 register The length of the register generated by the UI interface is 8 But the manual says that 4 What is the effect of this write?

(2)There are two registers that I write in and the readout is different. One registers is 0x1B, write 0x00 ；but read back is t 0xC0, the other registers is 0x50, write the 0x00, 0x00, 0x00, 0x00 ,but read back is 0x0f, 0x70 , 0x80, 0x00

  • 0
    TI__Genius 9995 points
    Hi Darren,

    I am looking into this issue from our database, I will get back to you after the confirmation.

    Regards，
    Alix Wan.
  • 0
    TI__Genius 9995 points

    Hi Darren,

    Sorry for the delay.

    1. The reserved registers are not open to customer and it will not affect your application. As it is suggested in DS, (2) Reserved registers must not be accessed.
    2. For the two registers:
      1. 0x1B is Oscillator trim register, it should be the same; Your readout indicates that Oscillator trim not done. Please see page 53 of DS for more details. Please see DS for trim operation.
      2. 0x50 is the Bank switch control and it should be the same too. See page 57 for debug reference. It is related to clock configuration.

    Regards,

    Alix Wan.