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
I2C0_SDA
PB13
PA1
PA0
High Frequency Crystal positive pin.
I2C0 Serial Clock Line input / output.
I2C0 Serial Data input / output.
PD7
PD6
PC7
PC6
LCD voltage booster (optional), boost capacitor, negative pin.
If using the LCD voltage booster, connect a 22 nF capacitor
between LCD_BCAP_N and LCD_BCAP_P.
LCD_BCAP_N
LCD_BCAP_P
PA13
PA12
LCD voltage booster (optional), boost capacitor, positive pin.
If using the LCD voltage booster, connect a 22 nF capacitor
between LCD_BCAP_N and LCD_BCAP_P.
LCD voltage booster (optional), boost output. If using the LCD
voltage booster, connect a 1 uF capacitor between this pin
and VSS.
LCD_BEXT
PA14
An external LCD voltage may also be applied to this pin if the
booster is not enabled.
If AVDD is used directly as the LCD supply voltage, this pin
may be left unconnected or used as a GPIO.
LCD_COM0
LCD_COM1
LCD_COM2
LCD_COM3
PE4
PE5
PE6
PE7
LCD driver common line number 0.
LCD driver common line number 1.
LCD driver common line number 2.
LCD driver common line number 3.
LCD segment line 0. Segments 0, 1, 2 and 3 are controlled by
SEGEN0.
LCD_SEG0
LCD_SEG1
LCD_SEG2
LCD_SEG3
LCD_SEG4
LCD_SEG5
LCD_SEG6
LCD_SEG7
LCD_SEG8
PF2
LCD segment line 1. Segments 0, 1, 2 and 3 are controlled by
SEGEN0.
PF3
LCD segment line 2. Segments 0, 1, 2 and 3 are controlled by
SEGEN0.
PF4
LCD segment line 3. Segments 0, 1, 2 and 3 are controlled by
SEGEN0.
PF5
LCD segment line 4. Segments 4, 5, 6 and 7 are controlled by
SEGEN1.
PE8
PE9
PE10
PE11
PE12
LCD segment line 5. Segments 4, 5, 6 and 7 are controlled by
SEGEN1.
LCD segment line 6. Segments 4, 5, 6 and 7 are controlled by
SEGEN1.
LCD segment line 7. Segments 4, 5, 6 and 7 are controlled by
SEGEN1.
LCD segment line 8. Segments 8, 9, 10 and 11 are controlled
by SEGEN2.
silabs.com | Building a more connected world.
Rev. 2.10 | 136
SILICON [ SILICON ]
