EFM32TG210F32 Energy Micro, EFM32TG210F32 Datasheet - Page 491

• Manufacturer Part Number: EFM32TG210F32
• Description: MCU 32BIT 32KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Tiny Geckor

Specifications of EFM32TG210F32

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.8 V
• Data Converters: A/D 4x12b, D/A 1x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad
• Processor Series: EFM32
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: UART, I2C, SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 1
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Processor To Be Evaluated: EFM32TG210
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

29.3.11 LCD Interrupt
29.3.12 Blink, Blank, and Animation Features
29.3.12.1 Blink
29.3.12.2 Blank
29.3.12.3 Animation State Machine
2010-12-21 - d0034_Rev0.90
Figure 29.43. LCD Clock System in LCD Driver
The LCD interrupt can be used to synchronize data update. The FC interrupt flag is set at every LCD
Frame Counter Event, which must be set-up separately. The interrupt is enabled by setting FC bit in
LCD_IEN.
The LCD driver can be configured to blink, alternating all enabled segments between on and off. The blink
frequency is given by the CLK
489) for details regarding synchronization of the blink feature. The FC must be on for blink to work.
Setting BLANK in LCD_BACTRL will output the “OFF” waveform on all enabled segments, effectively
blanking the entire display. Writing the BLANK bit to zero disables the blanking and segment data will
be output as normal. See Section 29.3.8 (p. 489) for details regarding synchronization of blank.
The Animation State Machine makes it possible to enable different animations without updating the data
registers, allowing specialized patterns running on the LCD panel while the microcontroller remains in
Low Energy Mode and thus saving power consumption. The animation feature is available on segment 0
to 7 multiplexed with LCD_COM0. The animation is implemented as two programmable 8 bits registers
that are shifted left or right every other Animation state for a total of 16 states.
The shift operations applied to the shift registers are controlled by AREGASC and AREGBSC in
LCD_BACTRL as shown in the table below. Note also that the FC must be on for animation to work, as
it is the FC event that drives the animation state machine.
CMU
LFRCO
LFXO
LFACLK
div128
div16
div32
div64
CMU_LFAPRESC0
LCD in
EVENT
div12
div16
div2
div4
div6
div8
LFACLK
frequency, see Section 29.3.10 (p. 490) . See Section 29.3.8 (p.
LCDpre
duplex
triplex
quadruplex
sextaplex
octaplex
static
FDIV[ 2:0]
LCD_DISPCTRL
Counter
...the world's most energy friendly microcontrollers
MUX in
491
LFACLK
LCD
div1
div2
div4
div8
LCD_BACTRL
FCPRESC in
CLK
FC
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FCTOP[ 5:0]
LCD Fram e
Counter
CLK
CLK
FRAME
EVENT