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The DSTREAM probe supports two separate voltage domains to work with debug and trace interfaces on differing voltage rails.
Voltage domain A is used by the following connectors:
ARM JTAG 20
TI JTAG 14
ARM JTAG 14
CoreSight 10
CoreSight 20
MIPI 34.
Voltage domain B is used by the following connectors:
Mictor 38
MIPI 34.
The MIPI 34 connector is the only one which supports both voltage domains, and is equipped with two VTREF pins to achieve the correct logic levels.
The VTREF A and VTREF B LEDs on the probe indicate when targets have been detected in the respective voltage domains.