Qwiic Connector; Debug Usb Micro-B Connector - Silicon Laboratories BG22 Explorer Kit User Manual

mikro- mikroBUS Pin
BUS Pin Function
Name
3V3 VCC 3.3V power
5V VCC 5V power
GND Reference Ground

3.6.3 Qwiic Connector

The BG22 Explorer Kit features a Qwiic connector compatible with Qwiic Connect System hardware. The Qwiic connector provides an
easy way to expand the functionality of the BG22 Explorer Kit with sensors, LCDs, and other peripherals over the I
Qwiic connector is a 4-pin polarized JST connector, which ensures the cable is inserted the right way.
Qwiic Connect System hardware is daisy chain-able as long as each I
2
Note: The Qwiic I C connections on the BG22 Explorer Kit are shared with the mikroBUS I
The Qwiic connector and its connections to Qwiic cables and the EFR32BG22 are illustrated in the figure below.
The table below gives an overview of the Qwiic connections to the EFR32BG22.
Qwiic Pin Connection
Ground GND
3.3V VMCU
SDA PD03
SCL PD02

3.6.4 Debug USB Micro-B Connector

The debug USB port can be used for uploading code, debugging, and as a Virtual COM port. More information is available in section
4. Debugging.
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Connection
VMCU EFR32BG22 voltage domain
5V Board USB voltage
GND Ground
Figure 3.7. Qwiic Connector
Table 3.3. Qwiic Connector Pinout
Shared Feature
Ground
EFR32BG22 voltage domain
MIKROE_I2C_SDA,
BREAKOUT_LEFT5
MIKROE_I2C_SCL,
BREAKOUT_LEFT6
Shared Feature
2
C device in the chain has a unique I
2
C signals.
GND
VMCU
SDA - PD3
SCL - PD2
Suggested Peripheral Mapping
UG509: BG22 Explorer Kit User's Guide
Hardware
Suggested Peripheral Mapping
2
C interface. The
2
C address.
Qwiic cable
I2Cx.SDA
I2Cx.SCL
Rev. 1.1 | 13