JTAG

To debug FPGA design, flash bitstream to FPGA and/or Flash memory JTAG X9 connector is used. It is located on the PCB bottom side and is compatible with Molex 788641001 connector. JTAG connector pins, schematic signal names, FPGA interconnections and I/O standards are listed in Table 14.

Table 14. JTAG connector X9 pins

Connector pin	Schematic signal name	FPGA pin	I/O standard	Comment
1	TDO	W8	3.3V	Test Data Out
2	TDI	W10	3.3V	Test Data In
3	TMS	W9	3.3V	Test Mode Select
4	VCC3P3			Power (3.3V)
5	TCK	C8	3.3V	Test Clock
6	GND			Ground