Debug Interface
22
SPMU365C – March 2014 – Revised October 2016
Copyright © 2014–2016, Texas Instruments Incorporated
Hardware Description
2.3.2 External Debugger
The connector U6 is provided for the attachment of an external debug adapter such as the IAR J-Link or
Keil ULINK. This connector follows the ARM standard 10-pin JTAG pinout. This interface can use either
JTAG or SWD if supported by the external debug adapter.
2.3.3 Virtual COM Port
When plugged into a USB host, the ICDI enumerates as both a debugger and a virtual COM port. JP4 and
JP5 control the selection of which UART from the TM4C1294NCPDTI is connected to the virtual COM
port. In the default configuration, UART0 maps to the virtual COM port of the ICDI. In the CAN jumper
configuration, UART2 maps to the virtual COM port of the ICDI.
