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LMK03328: Writing data for undefined address

Hirotaka Matsumoto
Guru 27605 points

Part Number: LMK03328
Other Parts Discussed in Thread: CODELOADER, CDCI6214

Hi all

Would you mind iff we ask LMK03328?

When we use TICS_PRO application with LMK03328, the output contains the data of undefined address as follows;
(※ These data are example)


We would like to confirm writing data for undefined address.

Which is correct?
1. To write data with sequencial(in a row) using the output of TICS_PRO
2. To write data except for undefined address

And then, in case of using Code Roder, is it the same as using TICS_PRO? 

Kind regards,

Hirotaka Matsumoto

  • 0
    TI__Genius 11900 points

    Hello,

    If you are using TICSPro, to program the LMK03328, these registers will not be disturbed.

    The registers are read only registers, so writing data to them should not be a concern, however it is best to avoid.

    It is recommended for all users to switch over to TICS Pro. However CodeLoader should also treat the registers the same way.

  • 0 in reply to Vibhu Vanjari
    Guru 27605 points

    Vibhu san

    Thank you so much for your reply.

    The registers are read only registers, so writing data to them should not be a concern, however it is best to avoid.
    ->OK we got it, however TICS Pro makes data of undefined address, why does TICS Pro make these data automatically?

    Kind regards,

    Hirotaka Matsumoto

  • 0 in reply to Hirotaka Matsumoto
    TI__Genius 11900 points

    Hello,

    I am confused by this statement: "makes data of undefined address, why does TICS Pro make these data automatically"

    Can you please elaborate.

    What registers are you referring to? What do you mean by makes data?

  • 0 in reply to Vibhu Vanjari
    Guru 27605 points

    Vibhu san

    Thank you so much for your reply.
    We are sorry that our explanation make you confuse.

    Following addresses are undifined on the datasheet.
    Addresss : 0x05    ～0x08, 0x1A, 0x30, 0x57, 0x6A～0x74, 0x79～0x82, 0xA9, 0xAC, 0xAD

    However, TICS Pro products data of these addresses automatically.
    Of cource, we got "The registers are read only registers, so writing data to them should not be a concern, however it is best to avoid.".

    "however it is best to avoid"
    ->If these registers are undifined, we don't understand why TICS Pro shows data and product.
        We would like to know for the heck of it.

    Kind regards,

    Hirotaka Matsumoto

  • 0 in reply to Hirotaka Matsumoto
    TI__Genius 11900 points
    Hello Hirotaka-san,

    Thank you for asking more about this, I caught an error with my last answer. The registers mentioned are "Reserved" , some of these are read-only, some of them are R/W. These registers may have been used during the design phase to set certain constants / debugging etc. Please do not write to these registers.

    "Certain device registers and bits are reserved meaning that they must not be changed from their default reset state." from the datasheet.
  • 0 in reply to Vibhu Vanjari
    Guru 19785 points

    Hi Vibhu-san,

    My request is not to show the hidden registers information in the TICS-Pro software in the next updated version.

    - User could see or access to the hidden registers from the RAW register page.
    - When saving the setting in .tcs file format or register information in .txt file format, hidden registers are shown.
    - When loading the register information or .tcs file, TICS-Pro is writing all the registers including the hidden registers.

    Most of the customer programs the same way as what TICS-Pro is doing.
    There is no way to distinguish whether the default register value shown in TICS-Pro is correct or not, since there is no default value described for hidden registers and there could be a possibility that user may miss-program the setting.

    I also have another request for the GUI that if LMK03328 could have similar wizard which CDCI6214 has would be greatly appreciated.
    This makes us very easy to design the PLL.
    LMK03328 is a very good device with good performance, however, many users are confused in the PLL design process and some hesitates to use this device.

    Best Regards,
    Kawai

  • 0 in reply to Kawai
    TI__Genius 11900 points
    Thank you for your note Kawai-san.