The AT91SAM9G20-EK Evaluation Kit supports the AT91SAM9G20 ARM926EJ-S-based 32-bit RISC microcontroller for real-time code development and evaluation.

Features

• Power Management Controller (PMC)
  • Very Slow Clock Operating Mode, Software Programmable Power Optimization Capabilities
  • Two Programmable External Clock Signals
• Advanced Interrupt Controller (AIC)
  • Individually Maskable, Eight-level Priority, Vectored Interrupt Sources
  • Three External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected
• Debug Unit (DBGU)
  • 2-wire UART and Support for Debug Communication Channel, Programmable ICE Access Prevention
• Periodic Interval Timer (PIT)
  • 20-bit Interval Timer plus 12-bit Interval Counter
• Watchdog Timer (WDT)
  • Key-protected, Programmable Only Once, Windowed 16-bit Counter Running at Slow Clock
• Real-time Timer (RTT)
  • 32-bit Free-running Backup Counter Running at Slow Clock with 16-bit Prescaler
• One 4-channel 10-bit Analog-to-Digital Converter
• Three 32-bit Parallel Input/Output Controllers (PIOA, PIOB, PIOC)
  • 96 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os
  • Input Change Interrupt Capability on Each I/O Line
  • Individually Programmable Open-drain, Pull-up Resistor and Synchronous Output
  • All I/O Lines are Schmitt Trigger Inputs
• Peripheral DMA Controller Channels (PDC)
• One Two-slot MultiMedia Card Interface (MCI)
  • SDCard/SDIO and MultiMediaCard™ Compliant
  • Automatic Protocol Control and Fast Automatic Data Transfers with PDC
• One Synchronous Serial Controller (SSC)
  • Independent Clock and Frame Sync Signals for Each Receiver and Transmitter
  • I²S Analog Interface Support, Time Division Multiplex Support
  • High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer
• Four Universal Synchronous/Asynchronous Receiver Transmitters (USART)
  • Individual Baud Rate Generator, IrDA® Infrared Modulation/Demodulation, Manchester Encoding/Decoding
  • Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support
  • Full Modem Signal Control on USART0
• Two 2-wire UARTs
• Two Master/Slave Serial Peripheral Interfaces (SPI)
  • 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects
  • Synchronous Communications
• Two Three-channel 16-bit Timer/Counters (TC)
  • Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel
  • Double PWM Generation, Capture/Waveform Mode, Up/Down Capability
  • High-Drive Capability on Outputs TIOA0, TIOA1, TIOA2
• One Two-wire Interface (TWI)
  • Compatible with Standard Two-wire Serial Memories
  • One, Two or Three Bytes for Slave Address
  • Sequential Read/Write Operations
  • Master, Multi-master and Slave Mode Operation
  • Bit Rate: Up to 400 Kbits
  • General Call Supported in Slave Mode
  • Connection to Peripheral DMA Controller (PDC) Channel Capabilities Optimizes Data Transfers in Master Mode
• IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins
• Required Power Supplies
  • 0.9V to 1.1V for VDDBU, VDDCORE, VDDPLL
  • 1.65 to 3.6V for VDDOSC
  • 1.65V to 3.6V for VDDIOP (Peripheral I/Os)
  • 3.0V to 3.6V for VDDUSB
  • 3.0V to 3.6V VDDANA (Analog-to-digital Converter)
  • Programmable 1.65V to 1.95V or 3.0V to 3.6V for VDDIOM (Memory I/Os)
• Available in a 217-ball LFBGA RoHS-compliant Package