EFM32G200F16 Energy Micro, EFM32G200F16 Datasheet - Page 431

• Manufacturer Part Number: EFM32G200F16
• Description: MCU 32BIT 16KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Geckor

Specifications of EFM32G200F16

• 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: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: EFM32G200
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 2
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

29.3.12 LCD in Low Energy Modes
29.3.13 Register access
2010-09-06 - d0001_Rev1.00
Example 29.2. LCD Animation Enable Example
• Write data into the animation registers LCD_AREGA, LCD_AREGB
• Enable the correct shift direction (if any)
• Decide which logical function to perform on the registers
• Configure the right animation period (CLK
• Enable the animation pattern and frame counter (AEN = 1, FCEN = 1)
For updating data in the LCD while it is running an animation, and the new animation data depends on
the pattern visible on the LCD, see the following example.
Example 29.3. LCD Animation Dependence Example
• Enable the LCD interrupt (the interrupt will be triggered simultaneously as the Animation State machine
• In the interrupt handler, read back the current state (ASTATE)
• Knowing the current state of the Animation State Machine makes it possible to calculate what data
• Modify data as required (Data will be updated at the next Frame Counter Event). It is important that
As long as the LFACLK is running (EM0-EM2), the LCD controller continues to output LCD waveforms
according to the data that is currently synchronized to the LCD Driver logic. In addition, the following
features are still active if enabled:
• Animation State Machine
• Blink
• LCD Event Interrupt
Since this module is a Low Energy Peripheral, and runs off a clock which is asynchronous to
the HFCORECLK, special considerations must be taken when accessing registers. Please refer to
Section 5.3 (p. 18) for a description on how to perform register accesses to Low Energy Peripherals.
• ALOGSEL = 0: Data_out = LCD_AREGA & LCD_AREGB
• ALOGSEL = 1:Data_out = LCD_AREGA | LCD_AREGB
changes state)
that is currently output
new data is written before the next Frame Counter Event.
EVENT
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