Atmel Evaluation Kit AT91SAM9G20-EK AT91SAM9G20-EK Data Sheet
Product codes
AT91SAM9G20-EK
Board Description
AT91SAM9G20-EK Evaluation Board User Guide
3-5
6413C–ATARM–18-Feb-09
3.3
Microcontroller
One 217-ball LFBGA fitted on board
3.4
Memory
32 Kbytes of Internal ROM
Two 4-KByte Internal SRAMs
Atmel serial DataFlash
64 Mbytes of SDRAM memory (32-bit bus width)
256 Mbytes of NAND Flash memory (8-bit bus width)
TWI serial EEPROM
3.5
Clock Circuitry
18.432 MHz standard crystal for the embedded oscillator
Selectable 32,768Hz Low-power external standard crystal Oscillator or Internal Low Power RC
Oscillator
Oscillator
3.6
Reset Circuitry
Internal reset controller with bi-directional reset pin
External reset pushbutton
3.7
Shutdown Controller
Programmable shutdown and Wake-Up
Wake-up push button
3.8
Power Supply Circuitry
On-board 1.0V High Efficiency step-down charge pump regulator with shutdown control
On-board 3.3V linear regulator with shutdown control
On-board power sequencer
3.9
Remote Communication
One serial interface (DBGU COM Port) via RS-232 DB9 male socket
One complete modem serial interface (COM Port 0) via RS-232 DB9 male socket
One additional serial interface (COM Port 1) with RTS/CTS handshake control via
RS-232 DB9 male socket
USB V2.0 full-speed compliant, 12 Mbits per second (UDP)
Two USB Host ports V2.0 full-speed compliant, 12 Mbits per second (UHP)