Atmel MCU Evaluation Kit AT91SAM7X-EK AT91SAM7X-EK Data Sheet
Product codes
AT91SAM7X-EK
Board Description
AT91SAM7X-EK Evaluation Board User Guide
3-9
6195E–ATARM–22-Mar-07
3.6
Memory
!
256 Kbytes of Internal High-speed Flash
!
64 Kbytes of Internal High-speed SRAM
!
Atmel serial DataFlash
®
!
One footprint for Atmel Serial EEPROM memory. The user can fit an AT24C128AN or
AT24C256AN or AT24C512AN in 8S1 package as well as a cryptomemory
AT88C25616C-SI
AT24C256AN or AT24C512AN in 8S1 package as well as a cryptomemory
AT88C25616C-SI
3.7
Clock Circuitry
!
18.432 MHz standard crystal for the embedded oscillator
!
32 KHz internal RC oscillator
3.8
Reset Circuitry
!
Internal reset controller with a bidirectional reset pin
!
External reset pushbutton
3.9
Power Supply
Circuitry
Circuitry
!
USB powered, the dynamic power consumption on VDDCORE is less than 90 mA at
full speed when running out of the Flash. The total current at power-up is less than
100 mA.
full speed when running out of the Flash. The total current at power-up is less than
100 mA.
!
External power can be applied via USB Power adapter 5V 0.5A with USB A/B cable
!
On-chip embedded VDDCORE 1.8V regulator
!
On-board 3.3V 400 mA linear regulator
3.10
Remote
Communication
Communication
!
One Serial interface (DBGU COM Port) via RS-232 DB9 male socket
!
One Serial interface (RS232 COM Port) via RS-232 DB9 male socket
!
USB V2.0 Full-speed compliant, 12 Mbits per second (UDP)
!
One CAN 2.0B communication port via the 3-position printed circuit terminal block
!
One MII Ethernet 100-base TX (auto MDI/MDI-X crossover cable)
3.11
Analog Interface
!
One selectable 0.2% 3.00V Vref or 3.3V ANA
!
One 3-position printed circuit terminal block
!
Two analog up to Vref inputs. One external user input and one back-looped with
buffered PWM3 output.
buffered PWM3 output.
!
One buffered PWM3 analog output (up to Vref)
3.12
User Interface
!
One 5-way joystick (4 directions and push for confirmation)
!
Four general-purpose buffered green user LEDs (PWM controlled)