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SEGGER Evaluation Software for
Silicon Labs EFM32 Giant Gecko DK

Silicon Labs - efm32 Giant Gecko dk

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Data Sheets

EFM32 Giant Gecko DK

  • EFM32GG990F1024 MCU with 1 MB Flash and 128 KB SRAM.
  • Advanced Energy Monitoring system for precise current tracking.
  • Special hardware configuration for isolation of the MCU power domain.
  • Replaceable prototyping board for quick custom application development.
  • Full feature USB debugger / emulator with trace support and debug out functionality.
  • 3.5-inch TFT-LCD 320x240 pixel RGB color display with resistive touch film.
  • Smart Board controller handles configuration and signal routing.
  • Single ended and differential ADC inputs.
  • Line-in stereo audio input amplifier.
  • Line-out stereo audio output amplifier and I2S DAC.
  • 1 x RS232 Serial Port (DSUB-9).
  • 10/100 Mbps Ethernet MAC+PHY with SPI interface
  • MicroSD card reader (SPI mode).
  • 2Meg x 16 (4MB) PSRAM with 70ns access time.
  • 8Meg x 16 (16MB) NOR Flash with 90ns access time.
  • 2Kb I2C EEPROM.
  • Temperature sensor with I2C interface.
  • 5 way joystick.
  • 4 User buttons, 4-bit DIP switch and 16 user LEDs.
  • USB Micro-AB (OTG) connector
  • 6.8mm coin cell holder for backup-RTC


  • High Performance 32-bit processor @ up to 48 MHz
  • Memory Protection Unit
  • Wake-up Interrupt Controller
  • Flexible Energy Management System
  • 1024 KB Flash
  • 128 KB RAM
  • Up to 90 General Purpose I/O pins
  • 12 Channel DMA Controller
  • 12 Channel Peripheral Reflex System for autonomous inter-peripheral signaling
  • Hardware AES with 128/256-bit keys in 54/75 cycles
  • 3× Universal Synchronous/Asynchronous Receiver/Transmitter
  • UART/SPI/SmartCard (ISO 7816)/IrDA (USART0)/I2S (USART1+USART2)
  • Integrated LCD Controller for up to 8×36 segments
  • External Bus Interface for up to 256 MB of external memory mapped space
  • Ultra low power precision analog peripherals
  • Ultra efficient Power-on Reset and Brown-Out Detector
  • 2-pin Serial Wire Debug interface
  • Single power supply 1.8 - 3.8 V