• 400 MHz / 400 MIPS Performance
• 32Kbyte Instruction Cache
• 32Kbyte Data Cache
• Linux and Windows CE enabled MMU
• 100 MHz System Bus
• 32 bit SDRAM Interface
• 32 bit SRAM / FLASH / ROM Interface
• Serial EEPROM Interface
• 10 / 100 Mbps Ethernet MAC
• 6 UART
• Two-port USB Host
• 4 channel 10 bit ADC
• 2 SPI Port
• Serial Audio Interface
• JTAG Interface
More detailed information regarding the AT91SAM9G20 processor can be found at
www.atmel.com
3.3 SDRAM(U1,U2)
The AT91SAM9G20 features a unified memory address model where all memory
devices are accessed over a common address and data bus. The SBC-SAM9G20
supports 64MB SDRAM.
SDRAM chip name:
MT48LC32M16A2P
3.4 FLASH(U9)
The SBC-SAM9G20 is shipped with 256 Mbytes of NAND FLASH memory. The
SBC-SAM9G20 can be also ordered with optional 512MB ~ 1GB NAND FLASH.
Nand Flash chip name:
K9F2G08UOA
3.5 Power Supply(J4)
The SBC-SAM9G20 board requires a reg12VDC at 1A power supply applied
to J4. The power can be protected by fuse 0.75A limited. When power is applied
LED(D22) will illuminate.
3.6 10/100M Net(J22)
The SBC-SAM9G20 Single Board Computer is shipped with support for a complete
Ethernet interface. The AT91SAM9G20 contains a MAC subsystem that is compliant
with the ISO/TEC 802.3 topology for a single shared medium with several stations.
The Media Access ontroller (MAC) within the AT91SAM9G20 supports 1/10/100
Mbps transfer rates and interfaces to industry standard physical layer devices. The
SBC-SAM9G20 is shipped with the DM9161 100Base-X / 10Base-T Transceiver
device which, along with a RJ45 connector, provides the physical layer interface.
SBC-SAM9G20 User manual
www.armdevs.com
