Pulse Width Modulation (Pwm); Figure 13. Pwm - Intel Quark D2000 Design Manual

Pulse Width Modulation (PWM)

5.0 Pulse Width Modulation (PWM)
The Pulse Width Modulation (PWM) block allows individual control of the frequency
and duty cycle of two output signals. The PWM block also supports use as a Timer
block for the purposes of generating periodic interrupts. A possible usage model
includes connecting PWM to drive a haptic driver. The two PWM pins are also
multiplexed and can be used as a GPIO. Two 32-bit timers running at system clock can
be configured to generate two PWM outputs.

Figure 13. PWM

The following is a list of PWM features:
 Two counters capable of operating in PWM Mode or Timer Mode
 PWM Mode
 Configurable high and low times for each PWM Output


 High and low time granularity of a single 32MHz clock period
 Interrupt generation always on both the rising and falling edges of the PWM
Output
 Interrupt control per PWM Output:


 Timer Mode
 32-bit timer operating at 32MHz

November 2016
Document Number: 333580-002EN
Minimum high and low time of 2 32MHz clock periods (8MHz)
Maximum high and low time of 2^32 32MHz clock periods (< 1Hz)
Interrupt generation only on both edges of the PWM Output
Interrupt mask capability
Timer periods from 1 32MHz clock period (31.25ns) to 2^32-1
Intel® Quark™ Microcontroller D2000
Platform Design Guide
23