ATSAM3N0BA-MU datasheet(48/60 Pages) ATMEL

48 / 60 page

11011BS–ATARM–22-Feb-12

SAM3N Summary

– Two multi-purpose input/output signals

• Two global registers that act on all three TC Channels

• Quadrature decoder

– Advanced line filtering

– Position/revolution/speed

• 2-bit Gray Up/Down Counter for Stepper Motor

12.6

Pulse Width Modulation Controller (PWM)

• Four channels, one 16-bit counter per channel

• Common clock generator, providing thirteen different clocks

– One Modulo n counter providing eleven clocks

– Two independent linear dividers working on modulo n counter outputs

• Independent channel programming

– Independent enable/disable commands

– Independent clock selection

– Independent period and duty cycle, with double buffering

– Programmable selection of the output waveform polarity

12.7

10-bit Analog-to-Digital Converter

• Up to 16-channel ADC

• 10-bit 384 Ksamples/sec. or 8-bit 583 Ksamples/sec. Successive Approximation Register

ADC

• ±2 LSB Integral Non Linearity, ±1 LSB Differential Non Linearity

• Integrated 8-to-1 multiplexer, offering eight independent 3.3V analog inputs

• External voltage reference for better accuracy on low voltage inputs

• Individual enable and disable of each channel

• Multiple trigger source

– Hardware or software trigger

– External trigger pin

– Timer Counter 0 to 2 outputs TIOA0 to TIOA2 trigger

• Sleep Mode and conversion sequencer

– Automatic wakeup on trigger and back to sleep mode after conversions of all

enabled channels

12.8

Digital-to-Analog Converter (DAC)

• 1 channel 10-bit DAC

• Up to 500 ksamples/s conversion rate

• Flexible conversion range

• Multiple trigger sources

• One PDC channel

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