TE0703 TRM

v.33

Copyright ©  2018 Trenz Electronic GmbH

8 of 17

http://www.trenz-electronic.de

3.7 LEDs

There are four on-board LEDs:

LEDColor Description

D1 Red FTDI UART receive activity.

D2 GreenFTDI UART transmit activity.

D3 Red CPLD signal FL_0.

D4 GreenCPLD signal FL_1.

LEDs D3 and D4 are also connected to the B2B connector JB2 pins FLED1 and FLED2 respectively and can be

controlled by SoM FPGA firmware.

3.8 DIP switches

DIP switch settings are CPLD Firmware depends, default firmware:

SwitchON

OFF

Notes

S2-1 Force CD Pin to module to GND

set CD Pin to module to SD CD

Pin

 TE0703 CPLD -

CC703S

S2-2 Module FPGA  JTAG access ( if S2-3

ON)

Module CPLD JTAG access ( if

S2-3 ON)

 TE0703 CPLD -

CC703S

S2-3 Module FPGA/CPLD  JTAG access ( 

depends on S2-3)

Carrier CPLD  JTAG access

 TE0703 CPLD -

CC703S

S2-4  Boot from SD Card (set Pin to

GND)

Boot from QSPI flash on

module (set Pin to VDD)

 TE0703

CPLD

-

CC703S

Boot Mode is also 

module depends

Mode status is displayed on TE0703 LEDs, see TE0703 CPLD - CC703S#CC703S-LED.