Silicon Laboratories EFM8UB2-SLSTK2001A User Manual page 5

MCU Port Pin Port Pin Assigned
Function
P1.7 PCA0 CEX1
P2.0 PCA0 CEX2
P2.1 UART1 TX
P2.2 UART1 RX
P2.3 Timer
P2.4 ADC
P2.5 ADC / CMP
P2.6 GPIO
P2.7 GPIO
P3.0 GPIO
P3.1 GPIO
P3.2 GPIO
P3.3 GPIO
P3.4 – P3.7 GPIO (x4)
P4.0 – P4.7 GPIO (x8)
C2D C2D (for debug)
Note:
1. This signal has high loading. If the MCU pin is used for signals where edge speed is critical, this signal should be disconnected
from the pin.
silabs.com | Building a more connected world.
Primary Board Connec- Secondary Board Con-
tion nection
RGB LED1
RGB LED2
UART1 TX
UART1 RX
BC - REFCLK
BC - 1 kHz SINE
Joystick
UG241: EFM8UB2-SLSTK2001A User's Guide
Kit Hardware Layout
Expansion Port Con-
nection (EXP)
EXP12
EXP14
EXP11
EXP13
EXP3
EXP5
EXP7
EXP9
Rev. 0.3 | 5