EFM32TG210F32 Energy Micro, EFM32TG210F32 Datasheet - Page 485

• 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

29.3.4 LCD Contrast
2010-12-21 - d0034_Rev0.90
• V
• The LCD display pixel that is connected to LCD_SEG0 and LCD_COM1 will be OFF with this waveform
Figure 29.40. LCD 1/3 Bias and Quadruplex Multiplexing - LCD_SEG0-LCD_COM1
1/3 bias and quadruplex multiplexing - LCD_SEG0-LCD_COM2
• DC voltage = 0 (over one frame)
• V
• The LCD display pixel that is connected to LCD_SEG0 and LCD_COM2 will be ON with this waveform
Figure 29.41. LCD 1/3 Bias and Quadruplex Multiplexing - LCD_SEG0-LCD_COM2
1/3 bias and quadruplex multiplexing - LCD_SEG0-LCD_COM2
• DC voltage = 0 (over one frame)
• V
• The LCD display pixel that is connected to LCD_SEG0 and LCD_COM3 will be OFF with this waveform
Figure 29.42. LCD 1/3 Bias and Quadruplex Multiplexing- LCD_SEG0-LCD_COM3
Different LCD panels have different characteristics and also temperature may affect the characteristics
of the LCD panels. To compensate for such variations, the LCD driver has a programmable contrast that
RMS
RMS
RMS
-V
-V
-V
-V
-V
-V
V
V
V
V
V
V
LC1
LC2
LC1
LC2
LC2
LC1
LC2
LC1
LC1
LC2
LC2
LC1
-V
-V
-V
= 0.33 × V
= 0.58 × V
= 0.33 × V
V
V
V
V
V
V
LC0
LC0
(2/3V
LC0
LC0
(2/3V
(1/3V
(1/3V
(2/3V
LC0
(1/3V
(1/3V
(2/3V
(2/3V
(1/3V
(1/3V
(2/3V
LC0
LC3
LC3
LC3
(V
(V
(V
(V
(V
(V
(V
(V
(V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
SS
SS
SS
)
)
)
)
)
)
)
)
)
)
)
)
)
Fram e Start
)
)
)
)
Fram e Start
)
)
)
)
Fram e Start
LCD_OUT
LCD_OUT
LCD_OUT
Fram e End
Fram e End
Fram e End
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