Atmel AT91SAM9261-EK, Руководство пользователя

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Board Description
AT91SAM9261-EK Evaluation Board User Guide 3-5
6198C–ATARM–15-Dec-06
3.3 Memory
!
32 Kbytes of Internal ROM
!
160 Kbytes of Internal High-speed SRAM
!
Atmel serial DataFlash
!
64 Mbytes of SDRAM memory
!
256 Mbytes of NAND Flash memory
3.4 Clock Circuitry
!
18.432 MHz standard crystal for the embedded oscillator
!
32.768 kHz standard crystal for the slow clock oscillator
3.5 Reset Circuitry !
Internal reset controller with a bi-directional reset pin
!
External reset push button
3.6 Shutdown
Controller !
Programmable shutdown and Wake-Up
!
Wake-up push button
3.7 Power Supply
Circuitry
!
For dynamic power consumption, the AT91SAM9261 consumes a maximum of 50 mA
on VDDCORE at maximum speed in typical conditions (1.2V, 25°C), processor
running full-performance algorithm
!
On-board 1.2V high efficiency step-down charge pump regulator with shutdown
control
!
On-board 3.3V linear regulator with shutdown control
3.8 Remote
Communication !
One Serial interface (DBGU COM Port) via RS-232 DB9 male socket
!
USB V2.0 Full-speed Compliant, 12 Mbits per second (UDP)
!
Two USB Host port V2.0 Full-speed Compliant, 12 Mbits per second (UHP)
!
One Ethernet 100-base TX with three status LEDs
3.9 Audio Stereo
Interface !
One Atmel stereo audio DAC AT73C213
!
One 32 Ohm/20 mW Stereo Headset output (J20) with Master Volume and Mute
Controls
3.10 User Interface !
Four user input pushbuttons
!
Two user green LEDs
!
One yellow power LED (can be also software controlled)