DP83867IR: Ethernet physical layer

saman mazrooie

Part Number: DP83867IR

the mdio pin is always output and can not read or write internal registers. strap mode for address is mode 1 and address is 0.

over 4 years ago

0 Ross Pimentel over 4 years ago

TI__Mastermind 23675 points

Hi Saman,

You will need to provide us more context here.

Can you please send us a schematic and more description on what the issue is please?

0 saman mazrooie over 4 years ago in reply to Ross Pimentel

Intellectual 640 points

eth.rar

0 saman mazrooie over 4 years ago in reply to saman mazrooie

Intellectual 640 points

Hi Ross Pimentel

the the schematic if attached. my problem is that after reset, mdio pin loads the signal that sourced from dsp.

it seems that tho mdio pin is output after reset.

Thank you for your answer.

0 Ross Pimentel over 4 years ago in reply to saman mazrooie

TI__Mastermind 23675 points

Hi Saman,

There is an internal pull-up on MDIO to VDDIO.

Is this what you are seeing?

I do not see a schematic attached.

0 saman mazrooie over 4 years ago in reply to Ross Pimentel

Intellectual 640 points

Hi Ross Pimentel

schematic is attached. pull-up isn't my problem. the problem is that after reset mdio is output and i can not set the device internal registers.

0 saman mazrooie over 4 years ago in reply to saman mazrooie

Intellectual 640 points

Hi Ross Pimentel

schematic is attached. pull-up isn't my problem. the problem is that after reset mdio is output and i can not set the device internal registers. 3323.eth.rar

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DP83867IR: Ethernet physical layer