
AURIX
™ lite Kit V2
Hardware Description
Board Users Manual
15
Revision October, 2020
3.3
Optional resistors
Some resistors/bridges enable/disable or changing functions of specific signals in Table 8.
To disable the signals, the resistors have to be removed. To enable, the resistor has to be assembled.
For example
: Desoldering the intialy assembled resistor R33, disables the Potentiometer and the analog Signal
AN0 of the
AURIX™, making it usable for other purposes.
Table 8
Signal mapping of the optional resistors
Resistor Res.
Assembled Signal
Size
(imperial)
Comment
R33
0
Ω
yes
AN0
0603
Disassemble to disable the potentiometer
R37
0
Ω
yes
XTAL2
0603
Serial resistor to reduce oscillator
amplitude if needed.
R39
0
Ω
no
+5V
0603
Assemble to connect 5V to Mikrobus and
Shield2Go connector
R59
4.7 k
Ω no
HWCFG6/P14.4
0603
Assemble to disable the internal pull-ups
with power on
R52
4.7 k
Ω No
HWCFG2/P14.2
0603
Assemble to enable the EVR13, only
needed with TC2X5 and R59 assembled
R53
4.7 k
Ω no
HWCFG3/P14.3
0603
Assemble to boot from BMI, only needed
with TC2X5 and R59 assembled
R56
4.7 k
Ω no
HWCFG3/P14.3
0603
Assemble
to
select
boot
from
HWCFG4/5, valid setting on P10.5/P10.6
needed
R54
4.7 k
Ω no
HWCFG4/P10.5
0603
Set HWCFG4 to high, only needed with
R56 assembled, not with R57
R55
4.7 k
Ω no
HWCFG5/P10.6
0603
Set HWCFG5 to high, only needed with
R56 assembled, not with R58
R57
4.7 k
Ω no
HWCFG4/P10.5
0603
Set HWCFG4 to low, only needed with
R56 assembled, not with R54
R58
4.7 k
Ω no
HWCFG5/P10.6
0603
Set HWCFG5 to low, only needed with
R56 assembled, not with R55
R44
0
Ω
no
P14.1, P00.12
0603
Assemble to use ASCLIN4 (P00.12)
instead of ASCLIN0 (P14.1) via USB,
only with TC3X5, P14.1 not usable in this
case
R45
0
Ω
no
P14.0, P00.9
0603
Assemble to use ASCLIN4 (P00.9)
instead of ASCLIN0 (P14.0) via USB,
only with TC3X5, P14.0 not usable in this
case