I am trying to use Serdes Val to test a link that has a switch on the other end. The switch can be configured to go into a loopback mode if the T2080 were to set the loopback bit in the TS1 sequence. Can the tool be used to push the external EP into that mode? Is there anything in the T2080 register space that I can configure via SW or an emulator to set that bit in the training sequence?