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DP83TC811S-Q1: 811S-Q1 enter sleep mode while link down

Fery Feng
Intellectual 2270 points
Part Number: DP83TC811S-Q1
Other Parts Discussed in Thread: UCD9248, UCD9240

Hi team,

Customer is wondering is that possible for 811S-Q1 to enter sleep mode while link down? Or it must be in link up state to enter sleep mode?

Thanks

  • 0
    TI__Genius 11900 points

    Hello Fery,

    "Once in sleep mode, all PHY blocks are disabled except for energy detection on the MDI. All register configurations are lost in sleep mode. No link can be established, data cannot be transmitted or received and SMI access is not available when in sleep mode"

    This is from section "8.4.8 Sleep" of the datasheet.

    Thanks,

    Vibhu

  • 0
    Prodigy 70 points

    Hello Fery,I want to ask you some questions about UCD9248

    1.For myown board designed with reference to KC705 ,firstly, I download the .xml files of ucd9248 from www.xilinx.com/.../56811.html. when I load the .xml file to the devices , the following error occurred:

    14:57:14.218 CUSTOMER ERROR Summary READ_VOUT on rail #1 (0.003 V) was not within 3% of VOUT_COMMAND (1.000 V)
    14:57:14.239 CUSTOMER_LOGONLY ERROR Summary READ_VOUT on rail #1 (0.003 V) was not within 3% of VOUT_COMMAND (1.000 V) at TIDP.Factory.TaskLibrary.UCD9240.Validate_Vout_Device_Reading(Int32 rail_num, Double percent_pass) in c:\Anne_TI\Workspaces\FusionTools-Main\Libraries\TIDP\TIDP.Factory.TaskLibrary\UCD9240.cs:line 548 at TIDP.Factory.TaskLibrary.UCD9240.Validate_Vout_Device_All_Rails(Double percent_pass) in c:\Anne_TI\Workspaces\FusionTools-Main\Libraries\TIDP\TIDP.Factory.TaskLibrary\UCD9240.cs:line 596

    2.For the KC705, fusion_digital_power_designer cannot find devices.I cannot see any information of rails.,

  • 0 in reply to Vibhu Vanjari
    TI__Intellectual 2270 points

    Hi Vibhu,

    My questions is, whether we can enter sleep mode during link down?

  • 0 in reply to user6192911
    TI__Genius 11900 points

    Hello,

    Please post the question regarding UCD9248 in the "Power management forum", a specialized engineer can you assist you there.

    Thanks,

    Vibhu

  • 0 in reply to Fery Feng
    TI__Genius 11900 points

    Hello Fery,

    Can you please give us more details about your application? Why are you trying to enter sleep mode during link down?

    Thanks,

    Vibhu

  • 0 in reply to Fery Feng
    TI__Genius 11900 points

    Hello Ferry,

    If this is still an issue can you please give me more information about the use case and application? Why are you trying to enter sleep mode during link down?

    Thanks,

    Vibhu