Sideband Use Pins for general UART channel?

Announcements

Live Webinar: USB-C adoption. Simple & Cost-efficient solutions | April 18th @9am or 5pm CEST. Register now !

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
KevinR_91
Employee
Employee
25 replies posted 10 likes received 10 replies posted

I understand it SBU1/2 pins are generally use for Alternate modes as a use for lower speed control and communication signals.  What would need to be done by a customer to turn these pins into a general UART interface?

Would they need to define and assign their own alternate mode?  If they were in control of both sides (PC control App and end device) I would assume they could send over the Alt mode capabilities, and understand that the channel is meant for UART communication correct?

0 Likes
1 Solution
RajathB_01
Moderator
Moderator
Moderator
250 replies posted 100 replies posted 50 replies posted

Hi,

Yes, given that both ends understand that SBU will be used for UART, it is enough to communicate the alternate mode over CC and negotiate appropriately while the SBU lines can be routed to the UART at each end.

Is customer using any specific CCGx part for this application?

Regards,

Rajath

View solution in original post

0 Likes
2 Replies
RajathB_01
Moderator
Moderator
Moderator
250 replies posted 100 replies posted 50 replies posted

Hi,

Yes, given that both ends understand that SBU will be used for UART, it is enough to communicate the alternate mode over CC and negotiate appropriately while the SBU lines can be routed to the UART at each end.

Is customer using any specific CCGx part for this application?

Regards,

Rajath

0 Likes

This would be for a dual port CCG4 device.