Datasheet

47
11011AS–ATARM–04-Oct-10
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
11.6 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
11.7 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
11.8 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