EFM32TG210F32 Energy Micro, EFM32TG210F32 Datasheet - Page 487

• 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

29.3.5 V
2010-12-21 - d0034_Rev0.90
Table 29.6. LCD Principle of Contrast Adjustment for Different Bias Settings.
R0 = R1 = R2 = R3 in the figure, while Rx is adjusted by changing the CONLEV bits.
By default, the LCD driver runs on main external power (V
An internal boost circuit can be enabled by setting VBOOSTEN in CMU_LCDCTRL and selecting the
boosted voltage by setting VLCDSEL in LCD_DISPCTRL. This will boosts V
be selected in the range of 3.0 V – 3.6 V by configuring VBLEV in LCD_DISPCTRL. Note that the boost
circuit is not designed to operate with the selected boost voltage, V
circuit can boost the V
When using the voltage booster, the LCD_BEXT pin must be connected through a 1 µF capacitor to
VSS, and the LCD_BCAP_P and LCD_BCAP_N pins must be connected to each other through a 22
nF capacitor.
1/4 bias
1/3 bias
1/2 bias
Static
LCD
Selection
LCD
up to 3.6 V when V
Rx
R0
R1
R2
R3
Rx
R0
R1
R2
Rx
R0
R1
Rx
R0
relative to V
Contrast adjustment
(CONCONF = 0)
V
V
V
V
LCD
LCD
LCD
LCD
V
V
V
V
V
V
V
V
V
V
V
V
V
V
LC0
LC1
LC2
LC3
LC4
LC0
LC1
LC2
LC3
LC0
LC1
LC3
LC0
LC3
DD
V
V
V
V
LCD_OUT
(V
LCD_OUT
LCD_OUT
LCD_OUT
LCD
DD
)
...the world's most energy friendly microcontrollers
is as low as 2.0 V.
487
R3
R0
R1
R2
R0
R1
R0
R1
R2
R0
Rx
Rx
Rx
Rx
Contrast adjustment
(CONCONF = 1)
relative to GND
V
V
V
V
LCD
LCD
LCD
LCD
LCD
V
V
V
V
V
V
V
V
V
V
V
V
V
V
LC0
LC1
LC2
LC3
LC4
LC0
LC1
LC2
LC3
LC0
LC1
LC3
LC0
LC3
= V
V
V
V
V
BOOST
LCD_OUT
LCD_OUT
LCD_OUT
LCD_OUT
DD
, smaller than V
), see Table 29.7 (p. 488) .
LCD
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No contrast adjustment
to V
R0
R1
R2
R3
R0
R1
R2
R0
R1
V
(CONLEV = 11111)
LCD
BOOST
V
V
V
V
LC0
LC3
V
LCD
LCD
LCD
V
V
V
V
V
V
V
V
V
V
V
V
V
DD
LC0
LC1
LC2
LC3
LC4
LC0
LC1
LC2
LC3
LC0
LC1
LC3
. V
LCD_OUT
. The boost
BOOST
V
V
V
LCD_OUT
LCD_OUT
LCD_OUT
can