JTAG Interface and Reset Logic: The Zynq UltraScale+ MPSoC architecture does not utilize a dedicated JTAG Reset (TRST) signal; consequently, this pin is not included in the SOM board-to-board (B2B) connector pinout. The implementation of a JTAG reset is not required for standard debugging or programming of this SOM.
Please note that iWave carrier board includes a JTAG reset path, this is to ensure compatibility with other SOM modules in iWave product family that may require it. For iG-G35M SOM (Zynq US+), this signal path can be left floating or ignored.
For further inquiries, please get in touch with mktg@iwave-global.com
Please find the detailed G35M product information in the below link,