The J-Link Mictor 38 Adapter connects the standard 20-pin 0.1" J-Link interface to the 38-pin Mictor interface. The pinout follows the single target connector pinout
specification as defined in the ARM "ETM Architecture
Specification".
The adapter connects the GND and JTAG pins to
their counterparts on the 20-pin J-Link. Trace pins present on
the Mictor connector are not connected as they are not present on
the 20-pin J-Link connector. The 38-pin Mictor side of the
adapter can be plugged either directly into the target side or
via trace cable. The J-Link side connects to J-Link via 20-pin
flat cable.
If you need trace capability, take a look at the J-Trace Debug + Trace Probe.