PAN9520 ETU Evaluation Tool
3 PAN9520 ETU
User Guide Rev. 1.0
Page 10 of 35
No.
Name
Function
19 USB IO switch
Switch for connecting either periphery like e.g. the
GPIO header pins or USB related pull resistors to the
native USB traces.
20 U.FL connector
Is connected to the PAN9520
’s RF pad.
3.15 PAN9520 RF Switch (SPDT) Control
21 Arduino UART signal selector
Pin header to swap the Arduino i
nterface’s pins for
UART TX and RX signals.
3.9 Arduino Board/Shield Configuration
22 GPIO0/boot pull-up jumper
For entering the application Boot Mode per default,
when powering the module, the pull-up on GPIO0
must be connected.
23 UART0/program signals
Pin header for connecting UART0 (TX and RX),
RSTn (DTR controlled), and IO0 (RTS controlled) of
the module to FT2232.
24 UART1 signals
Pin header for connecting the module’s UART1
signals (TX, RX, CTS, RTS) to FT232.
25 I²C pull-ups
4.7 kΩ pull-up resistors can be connected to GPIO 7
and GPIO 8 via these pins. GPIO 7 and GPIO 8 are
used for I²C (Inter Integrated Circuit) on the Arduino
socket and camera connector.
26 Camera voltage control 1.2 to 1.8 V
Low supply voltage control of camera interface. 1.2,
1.5 and 1.8 V can be configured by several jumper
settings.
27 Camera voltage control 2.8 to 3.3 V
High supply voltage control of camera interface.
2.8
V, 3 V, and 3.3 V can be configured by several
jumper settings.
28 Camera interface
Connector for using different camera modules.
29 FT232 IC (UART1)
USB to serial IC that is used for interfacing UART1
(inclusive flow control).