Peripherals; Push Buttons And Leds - Silicon Laboratories SLWRB4150A User Manual

6. Peripherals

The starter kit has a set of peripherals that showcase some of the features of the EFR32.
Be aware that most EFR32 I/O routed to peripherals are also routed to the breakout pads. This must be taken into consideration when
using the breakout pads for your application.

6.1 Push Buttons and LEDs

The kit has two user push buttons marked PB0 and PB1. They are connected directly to the EFR32, and are debounced by RC filters
with a time constant of 1 ms. The buttons are connected to pins PF6 and PF7.
The kit also features two yellow LEDs marked LED0 and LED1, that are controlled by GPIO pins on the EFR32. The LEDs are connec-
ted to pins PF4 and PF5 in an active-high configuration.
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UIF_LED0
PF4 (GPIO)
UIF_LED1
PF5 (GPIO)
UIF_PB0
PF6 (GPIO)
UIF_PB1
PF7 (GPIO)
EFR32
Figure 6.1. Buttons and LEDs
UG178: EFR32MG 2400/868 MHz 13 dBm Dual Band Radio Board
User Buttons
& LEDs
Peripherals
Rev. 1.00 | 11