• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 169 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN75DP130: Manually enable all the lanes method

Ben Tseng
Prodigy 20 points
Part Number: SN75DP130

Hi,

Refer to e2e SN75dp130 lane swap thread below.

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/708278/sn75dp130-sn75dp130-dp-lane-swap

How can I "manually enable all the lanes" on SN75DP130?

Could you please provide the method for us?

 

thank you

  • 0
    TI__Guru**** 176441 points

    Hi,

    You need to disable Link_Training_Enable bit first, 

    and then write to the DP130 DCPD register Lane_Count_Set to enable all lanes. 

    Access to and from the DP130’s DPCD address space is indirectly addressable through the local I 2C registers as illustrated in the figure below

    The configuration of these registers can be performed through the local I 2C interface, where three registers (from 1Ch to 1Eh) are used as the address to the DPCD register and another one (1Fh) as data to be read/written.

    Thanks

    David