M0519 datasheet(41/69 Pages) ETC2

41 / 69 page

M0519

Nov. 02, 2016

Page 41 of 69

Rev 1.02

Basic PWM Generator and Capture Timer (BPWM)

6.7

6.7.1

Overview

The NuMicro

® M0519 series has 1 set of BPWM group (BPWM0), supporting 1 set of BPWM

generators that can be configured as 2 independent BPWM outputs, BPWM0_CH0 and

BPWM0_CH1, or as 1 complementary BPWM pairs, (BPWM0_CH0, BPWM0_CH1) with

programmable dead-zone generator.

The BPWM generator has one 8-bit prescaler, one clock divider with 5 divided frequencies (1, 1/2,

1/4, 1/8, 1/16), two BPWM Timers including two clock selectors, two 16-bit BPWM down-counters

for BPWM period control, two 16-bit comparators for BPWM duty control and one dead-zone

generator. The BPWM generator provides two independent BPWM interrupt flags which are set

by hardware when the corresponding BPWM period down counter reaches zero.

Each BPWM interrupt source with its corresponding enable bit can cause CPU to request BPWM

interrupt. The BPWM generators can be configured as one-shot mode to produce only one

BPWM cycle signal or auto-reload mode to output BPWM waveform continuously. BPWM can be

used to trigger EADC when operation in center-aligned mode.

6.7.2

Features

BPWM Function:

6.7.2.1



Up to 1 BPWM group to support 2 BPWM channels or 1 BPWM paired channels.



Supports 8-bit prescaler from 1 to 255



Up to 16-bit resolution BPWM timer



PWM timer supports edge-aligned and center-aligned operation type



One-shot or Auto-reload mode BPWM



PWM Interrupt request synchronized with BPWM period or duty



Supports dead-zone generator with 8-bit resolution for BPWM paired channels



Supports trigger EADC

Capture Function:

6.7.2.2



Supports 2 Capture input channels shared with 2 BPWM output channels



Supports rising or falling capture condition



Supports rising or falling capture interrupt

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