ThingMagic Mercury xPRESS Platform v1.7 - Manual (Page 119)

A D I V I S I O N O F T R I M B L E
Hardware Reference Guide 119
JTAG Interface
The JTAG Interface is compatible with the SAM-ICE or other J-Link-based devices. Its
pin-out is as follows:
There is no orientation mark on either the jack or plug, so you must ensure that it is
connected this way:
Power Source Precedence
There are multiple sources of power into the xPRESS Motherboard, all of which might be
present simultaneously:

5V from “Wall-wart” AC adapter connection

5V from USB “USBOTG” Interface

Li-Ion battery
Signal Pin Pin Signal
V_3R3 1 2 TMS
GND 3 4 TCK
GND 5 6 TDO
NC 7 8 TDI
GND 9 10 RESET