Expansion Header Pin-Out - Silicon Laboratories SLWSTK6060B User Manual

3.4.1 Expansion Header Pin-out

The pin-routing on the EFR32 is very flexible, so most peripherals can be routed to any pin. However, many pins are shared between
the Expansion Header and other functions on the Wireless STK Mainboard.
an overview of the mainboard features that share pins with the Expansion Header.
Pin Connection
20 3V3
18 5V
16 PC11
14 PA1
12 PA0
10 PC9
8 PC8
6 PC7
4 PC6
2 VMCU
19 BOARD_ID_SDA
17 BOARD_ID_SCL
15 PC10
13 PF3
11 PF4
9 PF7
7 PF6
5 PA3
3 PA2
1 GND
Note: Pin PF3 is used for DBG_TDI in JTAG mode only. When the Serial Wire Debugging interface (SWD) is used, PF3 can be used
for other purposes.
silabs.com | Building a more connected world.
UG317: EFR32FG14 2400/915 MHz 19 dBm Dual Band Radio Board and Wireless Starter Kit User's Guide
Table 3.1. Expansion Header Pinout
EXP Header function
Board controller supply
Board USB voltage
I2C_SDA
UART_RX
UART_TX
SPI_CS
SPI_SCLK
SPI_MISO
SPI_MOSI
EFR32 voltage domain, included in AEM measurements.
Connected to Board Controller for identification of add-on boards.
Connected to Board Controller for identification of add-on boards.
I2C_SCL
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
Ground
Table 3.1 Expansion Header Pinout on page 10
Shared feature
SENSOR_I2C_SDA
VCOM_RX
VCOM_TX
-
FLASH_SCLK, DISP_SCLK
FLASH_MISO
FLASH_MOSI, DISP_SI
SENSOR_I2C_SCL
DBG_TDI
LED0
BTN1
BTN0
VCOM_RTS
VCOM_CTS
Connectors
includes
Peripheral mapping
I2C0_SDA #16
USART0_RX #0
USART0_TX #0
USART1_CS #11
USART1_CLK #11
USART1_RX #11
USART1_TX #11
I2C0_SCL #14
Rev. 1.00 | 10