
TE0790 TRM
Revision: v.37
Copyright © 2019 Trenz Electronic GmbH
19 of 27
http://www.trenz-electronic.de
7 Power and Power-On Sequence
7.1 Power supply of the adapter board
The XMOD can be powered via USB or with 3.3V on J2 pins, depending on
Max.
~100mA
for external components are available on J2 3.3V Pin, if the power supply via USB is used.
Following diagram shows how the settings of the DIP-switches S2-3 and S2-4 determines the configuration of the
on-board voltages:
Figure 4:
TE0790 on-board voltages configuration
7.2 Power Rails
Power Rail
Name
Pin Header
J2
Mini USB B
J4
Direction
Notes
3.3V
pin 5
-
both
possible
on-board peripherals' VCC and
core voltages
VIO
pin 6
-
both
possible
Pin header J2 interface signals
and SC CPLD VCCIO
VBUS
-
pin 1
input
USB bus power, nominal
voltage 5 V ± 5%
Table 10:
power rails.