2. Radio Board Connector
2.1 Introduction
The board-to-board connector scheme allows access to all EFR32MG1 GPIO pins as well as the RESETn signal. For more information
on the functions of the available pin functions, we refer you to the EFR32MG1 Datasheet.
2.2 Radio Board Connector Pin Associations
The figure below shows the pin mapping on the connector to the radio pins, to the I/O Expander pins (shown in brackets) and their
function on the Wireless Starter Kit Mainboard.
GND
F9 / PD13 / VCOM.RTS_CS / DISP_SCS
3v3
IOEXP_DBG_C2D / P36
P200
Upper Row
NC / P38
NC / P40
NC / P42
NC / P44
DEBUG.TMS_SWDIO / PF1 / F0
DISP_ENABLE ** / (P1.2) / F14
UIF_BUTTON0 / (P0.0) / PD14 / F12
UIF_LED0 ** / (P1.5) / F10
VCOM.CTS_SCLK / DISP_SCLK / PB11 / F8
DEBUG.RESET / RADIO_#RESET / P4
DEBUG.TDO_SWO / PF2 / F2
VCOM.TX_MOSI / DISP_SI / PA0 / F16
VCOM.TX_MOSI / DISP_SI / PA0 / F6
PTI_DATA / PB12 / F20
DISP_EXTCOMIN ** / (P1.3) / F18
USB_VBUS
5V
Board ID SCL
GND
Board ID SDA
USB_VREG
F7 / PA1 / VCOM.RX_MISO
F5 / (P1.1) / VCOM_ENABLE **
F3 / NC
F1 / PF0 / DEBUG.TCK_SWCLK
P45 / NC
P43 / NC
P41 / NC
P39 / NC
P37 / (P1.0) / SENSOR_ENABLE **
F11 / (P1.6) / UIF_LED1 **
F13 / PD15 / (P0.1) / UIF_BUTTON1
F15 / PB11 / COM.CTS_SCLK / DISP_SCLK
F17 / PD13 / VCOM.RTS_CS / DISP_SCS
F19 / PB13 / PTI_FRAME
F21 / NC
GND
VMCU_IN
(P0.6) / PF3 / P0
P201
Lower Row
NC / P2
UIF_BUTTON0 / PD14 / P4
UIF_BUTTON1 / PD15 / P6
GND
VRF_IN
P35 / IOEXP_DBG_C2CK
P7 / PD13 / VCOM.RTS_CS / DISP_SCS
P5 / PB11 / VCOM.CTS_SCLK / DISP_SCLK
P3 / PA1 / VCOM.RX_MISO
P1 / PA0 / VCOM.TX_MOSI / DISP_SI
P33 /
P31 /
P29 / PF2 / DEBUG.TDO_SWO
P27 / PF1 / DEBUG.TMS_SWDIO
P25 / PF0 / DEBUG.TCK_SWCLK
P23 / NC
P21 / NC
P19 / NC
P17 / NC
P15 / NC
P13 / PC10 / (P0.4)
P11 / NC
P9 / NC
NC / P34
NC / P32
NC / P30
NC / P28
NC / P26
NC / P24
NC / P22
NC / P20
NC / P18
PTI_FRAME / PB13 / P16
PTI_DATA / PB12 / P14
(P0.5) / PC11 / P12
PB15 * / P10
PB14 * / P8
* Connection is not available by default.
Can be enabled through solderable jumpers. See the schematic of the Radio Board.
** Connection is only available through the on-board I/O expander. The associated I/O expander ports are shown in brackets.
Figure 2.1. BRD4154A Radio Board Connector Pin Mapping
BRD4154A Reference Manual
Radio Board Connector
silabs.com
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