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

4.2. Debug connector location

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.