EFM8BB2 Datasheet, PDF (33/55 Pages) Silicon Laboratories – The EFM8BB2 highlighted features are listed below

Pin
Number
26
Pin Name
P0.4
27
P0.3
28
P0.2
Center
GND
Description
Multifunction I/O
Multifunction I/O
Multifunction I/O
Ground
Crossbar Capability
Additional Digital
Functions
Yes
P0MAT.4
INT0.4
INT1.4
UART0_TX
Yes
P0MAT.3
EXTCLK
INT0.3
INT1.3
Yes
P0MAT.2
INT0.2
INT1.2
EFM8BB2 Data Sheet
Pin Definitions
Analog Functions
ADC0.4
CMP0P.4
CMP0N.4
ADC0.3
CMP0P.3
CMP0N.3
ADC0.2
CMP0P.2
CMP0N.2
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