Instruction Manual

2. Radio Board Connector
2.1 Introduction
The board-to-board connector scheme allows access to all EFR32MG24 GPIO pins as well as the RESETn signal. For more informa-
tion on the functions of the available pins, see the EFR32MG24 data sheet.
2.2 Radio Board Connector Pin Associations
The figure below shows the mapping between the connector and the EFR32MG24 pins and their function on the Wireless Starter Kit
Mainboard.
GND
F9 / PA00 / VCOM_RTS
3v3
JOYSTICK* / PD02* / P36
P200
Upper Row
NC / P38
NC / P40
DBG_TDO_SWO / TRACED0 / PA03 / P42
TRACED2 / PA06 / P44
DBG_TMS_SWDIO / PA02 / F0
DISP_ENABLE / PC09 / F14
UIF_BUTTON0 / PB01 / F12
UIF_LED0 / PB02 / F10
VCOM_CTS / PB05 / F8
DBG_RESET / RESETn / F4
DBG_TDO_SWO / TRACED0 / PA03 / F2
DISP_SI / PC01 / F16
VCOM_TX / PA08 / F6
PTI_DATA / PD04 / F20
DISP_EXTCOMIN / PC06 / F18
USB_VBUS
5V
Board ID SCL
GND
Board ID SDA
USB_VREG
F7 / PA09 / VCOM_RX
F5 / PB00 / VCOM_ENABLE
F3 / PA04 / DBG_TDI / TRACECLK
F1 / PA01 / DBG_TCK_SWCLK
P45 / PA07 / TRACED3
P43 / PA05 / TRACED1
P41 / PA04 / DBG_TDI / TRACECLK
P39 / NC
P37 / NC
F11 / PB04 / UIF_LED1
F13 / PB03 / UIF_BUTTON1
F15 / PC03 / DISP_SCLK
F17 / PC08 / DISP_SCS
F19 / PD05 / PTI_SYNC
F21 / NC
GND
VMCU_IN
VCOM_CTS / PB05 / P0
P201
Lower Row
VCOM_RTS / PA00 / P2
TRACED1 / PA05 / P4
JOYSTICK* / PD02* / P6
GND
VRF_IN
P35 / PC04
P7 / PC00
P5 / PC03 / DISP_SCLK
P3 / PC02
P1 / PC01 / DISP_SI
P33 / PC06 / DISP_EXTCOMIN
P31 / PC08 / DISP_SCS
P29 / PC09 / DISP_ENABLE
P27 / NC
P25 / PD04 / PTI_DATA
P23 / NC
P21 / PB03 / UIF_BUTTON1
P19 / PB02 / UIF_LED0
P17 / PB01 / UIF_BUTTON0
P15 / PB00 / VCOM_ENABLE
P13 / PC07
P11 / PA09 / VCOM_RX
P9 / PA08 / VCOM_TX
NC / P34
NC / P32
NC / P30
NC / P28
UIF_LED1 / PB04 / P26
PTI_SYNC / PD05 / P24
NC / P22
DBG_TCK_SWCLK / PA01 / P20
DBG_TMS_SWDIO / PA02 / P18
DBG_TDO_SWO / TRACED0 / PA03 / P16
DBG_TDI / TRACECLK / PA04 / P14
PC05 / P12
TRACED3 / PA07 / P10
TRACED2 / PA06 / P8
*Mutually exclusive connections. Default: PD02 to P6.
Figure 2.1. BRD4186C Radio Board Connector Pin Mapping
BRD4186C Reference Manual
Radio Board Connector
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