4. Optional Debugging Connector¶

4.1. Debug Connector Signal Assignment¶

Pin	Signal	Description	type	I/O
1	MFG_NC1	Do not connect on the carrier board. These pins are reserved for manufacturing purposes.
3	MFG_NC0
5	BOOT[1]	Module specific boot mode, refer to the processor datasheet. Boot from flash is selected, if these pins are not connected. (N/A on TX28)	VDDIO	I
7	BOOT[0]		VDDIO	I
9	GND
11	#TRST		VDDIO
13	TMS		VDDIO
15	TDO		VDDIO
17	TDI		VDDIO
19	GND
21	TCK		VDDIO
23	GND
25, 27, 29	NC
2, 4, 6 … 28, 30	GND

Mates with Samtec FSI - 3mm Height, One Piece Interface, part no. FSI-115-03-G-D-AD

The SO-DIMM connector socket height has to be 5.2mm if the debug connector is used.