Acconeer XE123, Руководство пользователя

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Entry+ module EVK hardware user guide
Page 7 of 28
2022-07-06
© 2022 by Acconeer – All rights reserved
3. The EVK Hardware
In Figure 1 the block-diagram of the XE123/124 is shown. Figure 2 shows the XM123/124 block-
diagram.
Figure 1 The block-diagram of the XE123/124.
U
SB
1
Co
nn
ec
to
r
5V
Boot0
NRST
Button
XE123/124
V_EXT (1.8V)
GPIO pin
header
(1.8V signal
levels)
Solderbridge
Power pin
header
SWD
connector
NRST
3.3V
LDO
5V to 3.3V
LDO
3.3V to 1.8V
Level shifter
3.3V to 1.8V
USB/UART
converter,
CP2105
1V8
V_MISC
DFU
Button
VIN
Power
switch
Selection
switch
PS_ENABLE
PS_ENABLE*
VIN_VIO
XM
12
3
/
XM
12
4
* PS_ENABLE is an optional
signal. By default the power
switch is ON and
VIN_VIO=VIN
LED
1V8
3.3V