DP83869HM: SGMII voltage swing

Kristof Tunner

Part Number: DP83869HM

Dear All!

According to the datasheet of the dp83869HM it is avalaible to set the SGMII transciever differential voltage swing between 0.6-1.27(section 8.5), but I dont find the register which configures the voltage swing. Then how should I set the differential voltage swing to 800mVp-p?

Thanks,

Kristóf

over 3 years ago

0 Vikram Sharma over 3 years ago

TI__Genius 16030 points

Hello Kristof,

I am checking for the corresponding register configuration. I will get back.

Regards,

Vikram

0 Vikram Sharma over 3 years ago in reply to Vikram Sharma

TI__Genius 16030 points

Hello Kristof,

Thankyou for your patience. From the database I could find that register <0x00D4>[5:3] is used for the swing control but it is taking me a while to get my hands on the 869 hardware to find out the bits required to program it close to 800mV. Is it possible at your end to try with these register bits in parallel to achieve 800mV?

Regards,

Vikram

0 Vikram Sharma over 3 years ago in reply to Vikram Sharma

TI__Genius 16030 points

Hello Kristof,

Were you able to conclude on the suitable register setting of 0x00D4 for your setup?

Regards,

Vikram

0 Vikram Sharma over 3 years ago in reply to Vikram Sharma

TI__Genius 16030 points

Hello Kristof,

As I dont see further discussion on this thread after the last suggestion, so I assume your problem is resolved. I am closing this thread for now. You may reach out to us again for any other required assistance.

Regards,

Vikram

Interface

Interface forum

DP83869HM: SGMII voltage swing