EFM32G Data Sheet
Pin Definitions
Alternate
LOCATION
Functionality
0
1
2
3
Description
Debug-interface Serial Wire viewer Output.
DBG_SWO
PF2
PC15
Note that this function is not enabled after reset, and must be
enabled by software to be used.
High Frequency Crystal negative pin. Also used as external
optional clock input pin.
HFXTAL_N
PB14
HFXTAL_P
I2C0_SCL
PB13
PA1
PA0
PD6
PD7
PD5
High Frequency Crystal positive pin.
I2C0 Serial Clock Line input / output.
I2C0 Serial Data input / output.
PD7
PD6
PB11
I2C0_SDA
LETIM0_OUT0
LETIM0_OUT1
LEU0_RX
PF0
PF1
PC4
Low Energy Timer LETIM0, output channel 0.
Low Energy Timer LETIM0, output channel 1.
LEUART0 Receive input.
PB14
PB13
LEUART0 Transmit output. Also used as receive input in half
duplex communication.
LEU0_TX
PD4
PB8
Low Frequency Crystal (typically 32.768 kHz) negative pin. Al-
so used as an optional external clock input pin.
LFXTAL_N
LFXTAL_P
PCNT0_S0IN
PCNT0_S1IN
PCNT1_S0IN
TIM0_CC0
TIM0_CC1
TIM0_CC2
TIM0_CDTI0
TIM0_CDTI1
TIM0_CDTI2
TIM1_CC0
TIM1_CC1
TIM1_CC2
TIM2_CC0
TIM2_CC1
TIM2_CC2
US0_CLK
PB7
PC13
PC14
PC4
PA0
PA1
PA2
Low Frequency Crystal (typically 32.768 kHz) positive pin.
Pulse Counter PCNT0 input number 0.
PC0
PC1
Pulse Counter PCNT0 input number 1.
Pulse Counter PCNT1 input number 0.
PA0
Timer 0 Capture Compare input / output channel 0.
Timer 0 Capture Compare input / output channel 1.
Timer 0 Capture Compare input / output channel 2.
Timer 0 Complimentary Deat Time Insertion channel 0.
Timer 0 Complimentary Deat Time Insertion channel 1.
Timer 0 Complimentary Deat Time Insertion channel 2.
Timer 1 Capture Compare input / output channel 0.
Timer 1 Capture Compare input / output channel 1.
Timer 1 Capture Compare input / output channel 2.
Timer 2 Capture Compare input / output channel 0.
Timer 2 Capture Compare input / output channel 1.
Timer 2 Capture Compare input / output channel 2.
USART0 clock input / output.
PA1
PA2
PC13
PC14
PC15
PE10
PE11
PE12
PF3
PF4
PF5
PC13
PC14
PC15
PC13
PC14
PC15
PA8
PC8
PC9
PA9
PA10
PE12
PE13
PC10
PC9
PC8
US0_CS
USART0 chip select input / output.
USART0 Asynchronous Receive.
US0_RX
PE11
PC10
USART0 Synchronous mode Master Input / Slave Output (MI-
SO).
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