DP83867E: DP83867E - SGMII termination impedance trimming

Szymon Kielka

Part Number: DP83867E

Hello All,

Is there any possibility to trim SGMII interface impedace? I am accessing extended register set by procedure described in datasheet.

mii write 0 0xd 0x1f

mii write 0 0xe 0x0170

mii write 0 0xd 0x401f

mii read 0 0xe

>0c0F

set min/max Z

mii write 0 0xe 0x0c00

mii write 0 0xe 0x0c1F

and looks like there is no difference, no termination impedance change. Is it possible?

over 3 years ago

0 Gerome Cacho over 3 years ago

TI__Mastermind 39835 points

Hello Szymon,

I am following up with the appropriate resources to address your query. I expect a response by Tuesday, 11/23 at latest.

Sincerely,

Gerome

0 Gerome Cacho over 3 years ago in reply to Gerome Cacho

TI__Mastermind 39835 points

Hello Szymon,

We are communicating with the appropriate people regarding this request.

I believe that a similar query has been made by your team offline with my team, so I will be closing this thread for further contact on offline thread.

Sincerely,

Gerome

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DP83867E: DP83867E - SGMII termination impedance trimming