Atmel AT91SAM9G20

The Atmel AT91SAM9G20 is an ARM926EJ-S based High-performance 32-bit RISC Microcontroller with Thumb extensions, DSP Instruction Extensions, 32K Bytes Data Cache, 32K Bytes Instruction Cache, Write Buffer, MMU, 64K Bytes ROM, 32K Bytes SRAM, clock up to 400 MHz, USB 2.0 Full Speed Device Port, USB 2.0 Full Speed Host and Double Port, Ethernet MAC 10/100 Base T, External Bus Interface, Image Sensor Interface, Bus Matrix, System Controller, Reset Controller, Shutdown Controller, Clock Generator, Power Management Controller, Advanced Interrupt Controller, Debug Unit, Periodic Interval Timer, Watchdog Timer, Real-Time Timer, 4-channel 10-bit AD Converter, Three 32-bit PIO Controllers, 24-channel Peripheral DMA Controller, Two Slot Multimedia Card Interface, SSC, 4 * USART, 2 * Two Wire UART, 2 * SPI, Two 3-channel 16-bit Timer/Counters, TWI, IEEE 1149.1 JTAG Boundary Scan, 96 I/O Pins.