STM32U535NET3QTR datasheet(66/278 Pages) STMICROELECTRONICS

66 / 278 page

Functional overview

STM32U535xx

66/278

DS14217 Rev 1

All the digital processing is performed using only the kernel clock. The ADF requests the bus

interface clock (AHB clock) only when data must be transfered or when a specific event

requests the attention of the system processor.

The ADF main features are:

•

AHB interface

•

One serial digital input:

–

Configurable SPI interface to connect various digital sensors

–

Configurable Manchester coded interface support

–

Compatible with PDM interface to support digital microphones

•

Two common clocks input/output for Σ∆ modulators

•

Flexible BSMX for connection between filters and digital inputs

•

One flexible digital filter path, including:

–

A configurable CIC filter:

- Can be configured in Sinc4 filter

- Can be configured in Sinc5 filter

- Adjustable decimation ratio

–

A reshape filter to improve the out-off band rejection and in-band ripple

–

A high-pass filter to cancel the DC offset

–

Gain control

–

Saturation blocks

•

Clock absence detector

•

Sound activity detector

•

16- or 24-bit signed output data resolution

•

Continuous or single conversion

•

Possibility to delay independently each bitstream

•

Various trigger possibilities

•

Autonomous mode in Stop 0, Stop 1 and Stop 2 modes

•

Wake-up from Stop with all interrupts

•

DMA can be used to read the conversion data

•

Interrupts services

STM32U535NET3QTR 数据表(PDF) 66 Page - STMicroelectronics

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