Indicators and Connections¶

LEDs¶

LED Name	Color	Description
Link Status LED	Yellow	On once a host device has enumerated the BrainStem controller
User LED	Blue	Can be manipulated through any of the available APIs
Heartbeat LED	Green	Indicates active BrainStem connection; pulses at a rate determined by the system heartbeat rate
Power/Watchdog LED	Red and flashing blue	Solid red indicates the system is powered. Flashing blue is indication the internal watchdog is running and the USBHub3c firmware is healthy
Data Mode	Green	Upstream Port
	Red	Dowstream Port
	White	Control Port
Data Rate	Yellow	Downstream enumeration of USB 2.0 speeds.
	Green	Downstream enumeration of SuperSpeed (5Gbps)
	Blue	Downstream enumeration of SuperSpeed+ (10Gbps)
Power Role	Red	Connected: Port is Sourcing Power; Not Connected: Source Only
	Green	Connected: Port is Sinking Power; Not Connected: Sink Only
	Blue	Connected: N/A; Not Connected: Port is Dual Role Power Capable
Mode Mode	Red	SDP, CDP or DCP modes
	Blue	Power Delivery Mode
	Green	Quick Charge™ Mode
	White	Programable Power Supply Mode