21.1 Features
- True 16-bit Design (i.e., allows 16-bit PWM)
 - Two independent Output Compare Units
 - Double Buffered Output Compare Registers
 - One Input Capture Unit
 - Input Capture Noise Canceler
 - Clear Timer on Compare Match (Auto Reload)
 - Glitch-free, Phase Correct Pulse Width Modulator (PWM)
 - Variable PWM Period
 - Frequency Generator
 - External Event Counter
 - Four independent interrupt Sources (TOV1, OCF1A, OCF1B, and ICF1)
 
