Datasheet

628
11011B–ATARM–21-Feb-12
SAM3N
32.3 Block Diagram
Figure 32-1. Pulse Width Modulation Controller Block Diagram
32.4 I/O Lines Description
Each channel outputs one waveform on one external I/O line.
32.5 Product Dependencies
32.5.1 I/O Lines
The pins used for interfacing the PWM may be multiplexed with PIO lines. The programmer must
first program the PIO controller to assign the desired PWM pins to their peripheral function. If I/O
lines of the PWM are not used by the application, they can be used for other purposes by the
PIO controller.
PWM
Controller
APB
PWMx
PWMx
PWMx
Channel
Update
Duty Cycle
Counter
PWM0
Channel
PIO
Interrupt Controller
PMC
MCK
Clock Generator APB Interface Interrupt Generator
Clock
Selector
Period
Update
Duty Cycle
Counter
Clock
Selector
Period
PWM0
PWM0
Comparator
Comparator
Table 32-1. I/O Line Description
Name Description Type
PWMx PWM Waveform Output for channel x Output