Datasheet
37
XMEGA D3 [DATASHEET]
Atmel-8134N-ATxmega32D3-64D3-128D3-192D3-256D3-384D3_datasheet–03/2014
18. Hi-Res – High Resolution Extension
18.1 Features
Increases waveform generator resolution up to 8× (three bits)
Supports frequency, single-slope PWM, and dual-slope PWM generation
Supports the AWeX when this is used for the same timer/counter
18.2 Overview
The high-resolution (hi-res) extension can be used to increase the resolution of the waveform generation output from a
timer/counter by four or eight. It can be used for a timer/counter doing frequency, single-slope PWM, or dual-slope PWM
generation. It can also be used with the AWeX if this is used for the same timer/counter.
The hi-res extension uses the peripheral 4× clock (Clk
PER4
). The system clock prescalers must be configured so the
peripheral 4× clock frequency is four times higher than the peripheral and CPU clock frequency when the hi-res
extension is enabled.
There is one hi-res extensions that can be enabled for timer/counters pair on PORTC. The notation of this is HIRESC.