RF-Star EFR32BG22, Manual

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EFR32BG22
www.szrfstar.com V1.6 - Jun., 2022
Shenzhen RF-star Technology Co., Ltd.
Page 20 of 93
Figure 7. Pin Assignment of RF-BM-BG22B1
Table 4. Pin Functions of RF-BM-BG22B1
Pin Name Function Description
1 GND
-
Ground
2 VCC - Power supply: 2.2 V~ 3.8 V, recommended to 3.3 V
3 PA01/SWCLK I/O
GPIO/SWCLK (connect J-Link)
4 PA02/SWDIO I/O GPIO/SWDIO (connect J-Link)
5 RESET I Reset pin, active low (internal pull-up). Max. power supply: 1.8V.
6 PA03
RESTORE
All parameters will be reset to factory settings after this pin is set low
for 5 s.
7 PA04 Status indicator
Slave role (including Beacon) connection status indicator: at a low
level during connection (LED always on)
8 GND - Ground
9 GND - Ground
10 PC02 Status indicator
Master role connection status indicator: at a low level during
connection (LED always on)
11 PC03 I
Input status monitoring, the tatus will update in the broadcast packet
in real time. See details in “Description of default broadcast data”.
12 PC04 I Input status monitoring, the tatus will update in the broadcast packet