1.0 SAM3X8C Microcontroller Plug-in
Arduino fans may recognise this number in relation to the Arduino Due as it uses the SAM3X8E
micro-controller. The SAM3X8C is a smaller sibling in a 100 pin package and has less I/O pins
but internally it is more or less the same, has the
same flash memory (512K) and runs at 84MHz
clock speed. The Arduino Due implementation is
somewhat restricted as only a selection of the
available I/O pins and facilities are available
externally. The Arduino Due is limited in shape to
conform with other Arduino types (not that this is
a bad thing).
The SAM3X8C plug is a four layer PCB measuring
52mm x 52mm:
It carries:
•
Native USB port
•
Separate 3.3V regulator
•
•
Filtering and decoupling according to the
Atmel data sheet
•
12MHz crystal for the system oscillator
•
Either a 32768Hz crystal or a 32768Hz TCXO
(temperature compensated crystal oscillator) for the RTC
•
All I/O pins, power, reset etc. lines are brought out to two 2 x 20 way headers
•
External power requirements are 5V and 3V battery for RTC backup
•
JTAG support is not implemented
•
PA8 and PA9 I/O pins are available on the headers but are used by the programmer
https://store.arduino.cc/arduino-due
https://www.microchip.com/wwwproducts/en/ATSAM3X8C
For use with the Sgitheach SAM programmer ONLY and not any old Atmel product
Page 81
Version 1.0
Copyright Grahame Marsh/Nick Stock 2019
Содержание An E1T Timepiece
Страница 79: ...Fortress How It Works Board Schematics and Function Page 79 Version 1 0 Copyright Grahame Marsh Nick Stock 2019...
Страница 82: ...Page 82 Version 1 0 Copyright Grahame Marsh Nick Stock 2019 1 1 SAM3X8C schematic...
Страница 108: ...Page 108 Version 1 0 Copyright Grahame Marsh Nick Stock 2019...
Страница 109: ...Page 109 Version 1 0 Copyright Grahame Marsh Nick Stock 2019...
Страница 110: ...Page 110 Version 1 0 Copyright Grahame Marsh Nick Stock 2019...
Страница 120: ...E1T Data Sheet Page 120 Version 1 0 Copyright Grahame Marsh Nick Stock 2019...