EFM32WG995 Datasheet, PDF (66/85 Pages) Silicon Laboratories – Operation from backup battery when main power drains out

Alternate
Functionality
0
EBI_HSNC
PA11
EBI_NANDREn PC3
EBI_NANDWEn PC5
EBI_REn
PF5
EBI_VSNC
PA10
EBI_WEn
ETM_TCLK
ETM_TD0
ETM_TD1
ETM_TD2
ETM_TD3
GPIO_EM4WU0
GPIO_EM4WU1
GPIO_EM4WU2
GPIO_EM4WU3
GPIO_EM4WU4
GPIO_EM4WU5
PF4
PD7
PD6
PD3
PD4
PD5
PA0
PA6
PC9
PF1
PF2
PE13
HFXTAL_N
PB14
HFXTAL_P
I2C0_SCL
I2C0_SDA
I2C1_SCL
I2C1_SDA
PB13
PA1
PA0
PC5
PC4
LCD_BCAP_N
PA13
LCD_BCAP_P
PA12
LCD_BEXT
PA14
LCD_COM0
PE4
LCD_COM1
PE5
LCD_COM2
PE6
LCD_COM3
PE7
LCD_SEG0
PF2
LCD_SEG1
PF3
LCD_SEG2
PF4
...the world's most energy friendly microcontrollers
LOCATION
1
2
3
4
PA11 PA11
PC3
PC3
PC5
PC5
PF9
PF5
PA10 PA10
PF8
PF8
PF9
PD13
PB15
PF3
PF4
PC6 PA6
PC7 PA2
PD3 PA3
PD4 PA4
PD5 PA5
PD7
PD6
PB12
PB11
PC7 PD15 PC1
PC6 PD14 PC0
PE1
PE0
5
6
Description
External Bus Interface (EBI) TFT Horizontal Synchroniza-
tion pin.
External Bus Interface (EBI) NAND Read Enable output.
External Bus Interface (EBI) NAND Write Enable output.
External Bus Interface (EBI) Read Enable output.
External Bus Interface (EBI) TFT Vertical Synchronization
pin.
External Bus Interface (EBI) Write Enable output.
Embedded Trace Module ETM clock .
Embedded Trace Module ETM data 0.
Embedded Trace Module ETM data 1.
Embedded Trace Module ETM data 2.
Embedded Trace Module ETM data 3.
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
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 exter-
nal optional clock input pin.
High Frequency Crystal positive pin.
PF1 PE13 I2C0 Serial Clock Line input / output.
PF0 PE12 I2C0 Serial Data input / output.
I2C1 Serial Clock Line input / output.
I2C1 Serial Data input / output.
LCD voltage booster (optional), boost capacitor, negative
pin. If using the LCD voltage booster, connect a 22 nF ca-
pacitor between LCD_BCAP_N and LCD_BCAP_P.
LCD voltage booster (optional), boost capacitor, positive
pin. If using the LCD voltage booster, connect a 22 nF ca-
pacitor 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.
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 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 con-
trolled by SEGEN0.
LCD segment line 1. Segments 0, 1, 2 and 3 are con-
trolled by SEGEN0.
LCD segment line 2. Segments 0, 1, 2 and 3 are con-
trolled by SEGEN0.
2014-06-13 - EFM32WG995FXX - d0204_Rev1.40
66
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