Integrated USB-C* Usage

USBC_​SML* is used to communicate with USB-C* PD Controller on the platform to configure different modes such as USB, DP, Thunderbolt etc. When used for Integrated USB-C* purposes, a soft strap must be set to indicate that integrated USB-C ports from Processor are being used.

USBC_​SML uses controller mode and gets an alert signal from PMCALERT#.

Based on capabilities of different PD Controllers, re-timers needed for USB-C* connector on the platform may need to be controlled by the Processor also.

Intel^® Core™ Ultra 200V Series Processor SKU supports three integrated USB-C* ports. Due to this, there could be maximum of two PD Controller and three re-timers.

USB-C* connectors are present at one side or both side of the system,so (USBC_​SML, PMCAlert) could be routed to long distance on the motherboard provided total bus capacitance specification is met.

USB-C* Re-timer control (like Firmware Load, USB-C configuration) handling depends on the number of I²C ports available on the PD controller.

If the PD controller has two I²C ports then Processor PMC will handle the Re-timer and PD controller, but if the PD controller has three or more I²C ports then Processor PMC will handle only PD controller. Re-timers can be handled by PD controller.

Note: SMLink1 and SMLink0 should not be connected to USB Type-C PD Controllers.