EFM32TG108 Datasheet, PDF (32/48 Pages) Silicon Laboratories – Output state retention and wake-up from Shutoff Mode

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Some functionality, such as analog interfaces, do not have alternate settings or a LOCA-
TION bitfield. In these cases, the pinout is shown in the column corresponding to LOCA-
TION 0.
Table 4.2. Alternate functionality overview
Alternate
Functionality 0
ACMP0_CH0
PC0
ACMP0_CH1
PC1
ACMP0_O
PE13
ACMP1_CH6
PC14
ACMP1_CH7
PC15
ACMP1_O
PF2
BOOT_RX
PF1
BOOT_TX
PF0
CMU_CLK0
CMU_CLK1
DBG_SWCLK
PF0
DBG_SWDIO
PF1
DBG_SWO
PF2
GPIO_EM4WU0
GPIO_EM4WU3
GPIO_EM4WU4
GPIO_EM4WU5
PA0
PF1
PF2
PE13
HFXTAL_N
PB14
HFXTAL_P
I2C0_SCL
I2C0_SDA
LES_ALTEX0
LES_ALTEX1
LES_ALTEX6
LES_ALTEX7
LES_CH0
LES_CH1
LES_CH14
LES_CH15
LETIM0_OUT0
LETIM0_OUT1
LEU0_RX
PB13
PA0
PD6
PD7
PE12
PE13
PC0
PC1
PC14
PC15
PD6
PD7
1
PF0
PF1
PC15
PD7
PD6
PB11
PB14
LOCATION
2
3
4
PD6
PD7
PD7
PE12
PC1
PC0
PF0
PF1
PF1
PA0
5
6
PF1 PE13
PF0 PE12
Description
Analog comparator ACMP0, channel 0.
Analog comparator ACMP0, channel 1.
Analog comparator ACMP0, digital output.
Analog comparator ACMP1, channel 6.
Analog comparator ACMP1, channel 7.
Analog comparator ACMP1, digital output.
Bootloader RX.
Bootloader TX.
Clock Management Unit, clock output number 0.
Clock Management Unit, clock output number 1.
Debug-interface Serial Wire clock input.
Note that this function is enabled to pin out of reset, and has
a built-in pull down.
Debug-interface Serial Wire data input / output.
Note that this function is enabled to pin out of reset, and has
a built-in pull up.
Debug-interface Serial Wire viewer Output.
Note that this function is not enabled after reset, and must be
enabled by software to be used.
Pin can be used to wake the system up from EM4
Pin can be used to wake the system up from EM4
Pin can be used to wake the system up from EM4
Pin can be used to wake the system up from EM4
High Frequency Crystal negative pin. Also used as external
optional clock input pin.
High Frequency Crystal positive pin.
I2C0 Serial Clock Line input / output.
I2C0 Serial Data input / output.
LESENSE alternate exite output 0.
LESENSE alternate exite output 1.
LESENSE alternate exite output 6.
LESENSE alternate exite output 7.
LESENSE channel 0.
LESENSE channel 1.
LESENSE channel 14.
LESENSE channel 15.
Low Energy Timer LETIM0, output channel 0.
Low Energy Timer LETIM0, output channel 1.
LEUART0 Receive input.
2015-03-06 - EFM32TG108FXX - d0032_Rev1.40
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