PAN9520 ETU Evaluation Tool
3 PAN9520 ETU
User Guide Rev. 1.0
Page 9 of 35
No.
Name
Function
1 Module native USB connector
Connected to GPIO 19 and GPIO 20, which can be
used for USB.
2 GPIO0/boot button
Button SW1 to be used for controlling the Boot Mode
at start-up or as general-purpose button in
application.
3 General-purpose buttons
Buttons SW2 to SW4 are for general purpose.
4 Power LED
LED that indicates power on +3V3 net.
5 General purpose LEDs
LEDs 1 to 3 can be used for general purpose.
6 USB connector
USB connector for FT232 (UART1) and FT2232
(JTAG and UART0).
7 Current measurement pin headers
If no jumper is connected to pin 7 and pin 10, these
pins can be used for current measurement.
10
8 Reset button
Resets the PAN9520.
9 Peripheral power supply
Pin header to control the supply of peripheral devices
as FT232 and FT2232.
11 USB hub IC
USB hub for connecting FT232 and FT2232 to the
USB connector.
12 Break out pin header
All GPIOs of the PAN9520 are connected to these
headers.
13 FT2232 IC (JTAG and UART0)
USB to dual port IC (port0: JTAG, port1: UART0)
14 5V input/output control
Configures, if 5
V pins are connected via a diode
(input) or directly (input and/or output).
3.9 Arduino Board/Shield Configuration
15 Arduino socket
Arduino compatible socket.
16 JTAG signals
Pin header for connecting JTAG signals (FT2232 or
external debugger) to the module’s pins.
17 SPDT control pin header
Pin header for controlling the SPDT RF switch on the
PAN9520.
3.15 PAN9520 RF Switch (SPDT) Control
18 PAN9520 module
PAN9520 802.11 b/g/n embedded Wi-Fi module