RT600 datasheet(84/167 Pages) NXP

84 / 167 page

RT600

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Product data sheet

Rev. 2.0 — 1 April 2022

84 of 165

NXP Semiconductors

RT600

Dual-core microcontroller with 32-bit Cortex-M33 and Xtensa HiFi4

Audio DSP CPUs

10.18.7 Micro-Tick Timer

A 32-bit MicroTick timer that runs from the 1 MHz low-power oscillator. This timer can

wake up the device from reduced power modes up to deep-sleep, with extremely low

power consumption. The MicroTick timer has an added timestamp feature in the form of 4

capture registers.

10.18.7.1 Features

• Ultra simple, ultra-low power timer that can run and wake up the device in reduced

power modes other than deep power-down.

• Write once to start.

• Interrupt or software polling.

• Four capture registers that can be triggered by external pin transitions.

10.19 Other digital peripherals

10.19.1 DMA controller

The DMA controller allows peripheral-to memory, memory-to-peripheral, and

memory-to-memory transactions. Each DMA stream provides unidirectional DMA

transfers for a single source and destination.

Two identical DMA controllers are provided on the RT600. The user may elect to dedicate

one of these to the Cortex M-33 CPU and the other for use by the DSP CPU and/or one

may be used as a secure DMA the other non-secure.

10.19.1.1 Features

• One channel per on-chip peripheral direction: typically one for input and one for output

for most peripherals.

• DMA operations can optionally be triggered by on- or off-chip events.

• Priority is user selectable for each channel.

• Continuous priority arbitration.

• Address cache.

• Efficient use of data bus.

• Supports single transfers up to 1,024 words.

• Address increment options allow packing and/or unpacking data.

10.19.2 DMIC subsystem

10.19.2.1 Features

• Pulse-Density Modulation (PDM) data input for left and/or right channels on 1 or 2

buses.

• Flexible decimation.

• 16 entry FIFO for each channel.

• DC blocking or unaltered DC bias can be selected.

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