DP83826E: Question about FLD Detection modes by strap.

Hi

My customer has additional questions.

1. What function is Odd Nibble?

2. What problems can you encounter when you enable the 'Low SNR Threshold', 'Signal/Energy Loss' and 'Dramble Link Loss' features in an EtherCAT application?

3. Strap options

   : It did not work properly when set to the recommended strap, the EtherCAT application in the datasheet.

       -. Device Scan not performed on EtherCAT Parent.

       -. Device scanned normally when Strap8 setting value changed to '0'

       -.  Regardless of the mode of Strap1, Strap8 seems to operate with the MII/RMII Mode setting, so please check if there is a problem with

            the Strap Option in the circuit below.

Thanks

Hi

Sorry. I didn't share the picture below. Please look at the picture below and check it again

Thanks

Hello,

Thank you for the photos. I am awaiting the results on registers 0x467, 0x3, as well as 0x17 and 0x468.

Sincerely,

Gerome

Hi Gerome

My customer has additional questions.

1. Contact Strap Option 
  When I set it up with the recommended strap, the EtherCAT application on the datasheet, it didn't work properly, so please check again if there is a problem     with the strap options.

   - Do not scan devices performed on the EtherCAT parent (TwinCAT3)

  - Device scanned normally when Strap8 setting value changed to '0'

2. Inquiries regarding PHY Register setting status according to H/W Strapping status

    - Strap1 is currently in a disabled state with PDR connected, but it is in the Enable state when checking the register.
      Please check if there are any problems.

      ODD Nibble Detection Bootstrap Status: H/W configuration to current "0"

    PHY Register on datasheet (P.66 / CR2 Register)

   information of PHY register read : 0x100(Enable)

   Thanks

Hello,

I cannot interpret this register data information. This last figure is the readout for Reg 0xA? 

Could you please provide the register information from earlier post? We cannot proceed with debug until that information is given to understand what the PHY is seeing. 

Please ensure that proper extended register access is being followed to have accurate result.

Sincerely,

Gerome

Hello, I am YOO.

It is difficult to check data in the current TwinCAT program with the requested Register address.
Only registers from 0X00 to 0X0F addresses can be checked, and subsequent data are difficult to check.

During the PHY register confirmation process, 0xA register data was confirmed.
Different from the Odd Nibble Detection (Strap1) H/W configuration, Reigster recognition status was confirmed as shown in the figure above.

In addition, when checking the register address 0x3, the Device Revision information is different from the Default value, so please check if there is a difference in phy function depending on the h/w Revision. Please refer to the picture below for details.

- PHY 0X3 Register ADDR.

- PHY 0X3 Register Data (TwinCAT3 Readed Data)

Hello

Thank you for your reply.

I am inquiring again.Please check the function or specification difference between DP83826 Revision 0 and 1.
In addition, please share the data of Datasheet or Application Note required for circuit design in older version.

Hello,

Unfortunately, our support is limited to the latest revision of the silicon. Please switch over to the new version of silicon and check this issue. If it still persists, we can continue debug from there.

Sincerely,

Gerome

Due to the company's internal circumstances, it is necessary to produce products mixed with the previous version, so it is necessary to check additional parts information for H/W Revolution. (Excluding inquiry of Revision information through Register Read)

The marking codes for the parts currently being applied are as follows.

Please check the delivery schedule and manufactured schedule of the above marking code parts, and request a method of checking H/W revision information in the marking code.

In addition, it has been confirmed that the odd Nibble function is supported from Rev.F on Datasheet,
so please check the version that supports the actual ODD Nibble function and the initial delivery schedule.

Thank you.

Hi Gerome

I have additional questions.

1. Are you saying that the product HOYEON inquired about with the marking picture is Rev A?
2. And is there a way to distinguish Rev according to the marking code?

Thanks

Hi Gerome

I have additional questions.

1. They want to know the H/W revision information of the DP83826 being delivered.
What is the revision information of DP83826 that has been shipped from TI recently?
And when did the revision start to apply the odd nibble function?

2.Can I get the revision information when I get it delivered?

Thanks

David,

Only the newest revision of DP83826 is in circulation. Odd nibble strap-ability was included in this newest revision.

More revision information may need to come from your TI field representative.

Sincerely,

Gerome

Hi Gerome

Thank you for your support.

Can you tell me from which revision the Odd nibble strap-ability was applied?
Because they have several versions of the product, they want to distinguish.

Thanks

Hi Gerome

Is the newest revision you mentioned revision F?

Thanks