EFM32TG840 Datasheet, PDF (7/70 Pages) Silicon Laboratories – Output state retention and wake-up from Shutoff Mode

...the world's most energy friendly microcontrollers
2.1.26 Liquid Crystal Display Driver (LCD)
The LCD driver is capable of driving a segmented LCD display with up to 8x20 segments. A voltage
boost function enables it to provide the LCD display with higher voltage than the supply voltage for the
device. In addition, an animation feature can run custom animations on the LCD display without any
CPU intervention. The LCD driver can also remain active even in Energy Mode 2 and provides a Frame
Counter interrupt that can wake-up the device on a regular basis for updating data.
2.2 Configuration Summary
The features of the EFM32TG840 is a subset of the feature set described in the EFM32TG Reference
Manual. Table 2.1 (p. 7) describes device specific implementation of the features.
Table 2.1. Configuration Summary
Module
Cortex-M3
DBG
MSC
DMA
RMU
EMU
CMU
WDOG
PRS
I2C0
USART0
USART1
LEUART0
TIMER0
TIMER1
RTC
LETIMER0
PCNT0
ACMP0
ACMP1
VCMP
ADC0
DAC0
OPAMP
AES
Configuration
Pin Connections
Full configuration
NA
Full configuration
DBG_SWCLK, DBG_SWDIO,
DBG_SWO
Full configuration
NA
Full configuration
NA
Full configuration
NA
Full configuration
NA
Full configuration
CMU_OUT0, CMU_OUT1
Full configuration
NA
Full configuration
NA
Full configuration
I2C0_SDA, I2C0_SCL
Full configuration with IrDA
US0_TX, US0_RX. US0_CLK, US0_CS
Full configuration with I2S
US1_TX, US1_RX, US1_CLK, US1_CS
Full configuration
LEU0_TX, LEU0_RX
Full configuration
TIM0_CC[2:0]
Full configuration
TIM1_CC[2:0]
Full configuration
NA
Full configuration
LET0_O[1:0]
Full configuration, 16-bit count register PCNT0_S[1:0]
Full configuration
ACMP0_CH[7:4], ACMP0_O
Full configuration
ACMP1_CH[7:4], ACMP1_O
Full configuration
NA
Full configuration
ADC0_CH[7:0]
Full configuration
DAC0_OUT[1:0], DAC0_OUTxALT
Full configuration
Outputs: OPAMP_OUTx,
OPAMP_OUTxALT, Inputs:
OPAMP_Px, OPAMP_Nx
Full configuration
NA
2015-03-06 - EFM32TG840FXX - d0011_Rev1.40
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