The i.MX RT500 is a family of dual-core microcontrollers for

embedded applications featuring an Arm Cortex-M33 CPU

combined with a Cadence® Xtensa® Fusion F1 Audio Digital

Signal Processor CPU. The Cortex-M33 includes two hardware

coprocessors providing enhanced performance for an array of

complex algorithms along with a 2D Vector GPU with LCD

Interface and MIPI DSI PHY. The family offers a rich set of

peripherals and very low power consumption. The device has up

to 5 MB SRAM, two FlexSPIs (Octal/Quad SPI Interfaces) each

with 32 KB cache, one with dynamic decryption, high-speed USB

device/host + PHY, 12-bit 1 MS/s ADC, Analog Comparator,

Audio subsystems supporting up to 8 DMIC channels, 2D GPU

and LCD Controller with MIPI DSI PHY, SDIO/eMMC; FlexIO;

AES/SHA/Crypto M33 coprocessor and PUF key generation

Control processor core

• Arm Cortex-M33 processor, running at frequencies of

up to 275 MHz

• Arm TrustZone

• Arm Cortex-M33 built-in Memory Protection Unit (MPU)

supporting eight regions

• Single-precision Hardware Floating Point Unit (FPU).

• Arm Cortex-M33 built-in Nested Vectored Interrupt

Controller (NVIC).

• Non-maskable Interrupt (NMI) input.

• Two coprocessors for the Cortex-M33: a hardware

accelerator for fixed and floating point DSP functions

(PowerQuad) and a Crypto/FFT engine (Casper). The

DSP coprocessor uses a bank of four dedicated 8 KB

SRAMs. The Crypto/FFT engine uses a bank of two 2

KB SRAMs that are also AHB accessible by the CPU

and the DMA engine.

• Serial Wire Debug with eight break points, four watch

points, and a debug timestamp counter. It includes

Serial Wire Output (SWO) trace and ETM trace.

• Cortex-M33 System tick timer

DSP processor core

• Cadence Tensilica Fusion F1 DSP processor, running

at frequencies of up to 275 MHz.

• Hardware Floating Point Unit.

• Serial Wire Debug (shared with Cortex-M33 Control

Domain CPU).

Communication interface

• Up to 9-12 configurable universal serial interface

modules (Flexcomm Interfaces). Each module

contains an integrated FIFO and DMA support.

Each of the nine modules can be configured as:

• A USART with dedicated fractional baud rate

generation and flow-control handshaking

signals. The USART can optionally be clocked

at 32 kHz and operated when the chip is in

reduced power mode, using either the 32 kHz

clock or an externally supplied clock. The

USART also provides partial support for

LIN2.2.

• An I2C-bus interface with multiple address

recognition, and a monitor mode. It supports

400 Kb/sec Fast-mode and 1 Mb/sec Fastmode

Plus. It also supports 3.4 Mb/sec highspeed

when operating in slave mode.

• An SPI interface.

• An I2S (Inter-IC Sound) interface for digital

audio input or output. Each I2S supports up to

four channel-pairs.

• Two additional high-speed SPI interfaces supporting

50 MHz operation

• One additional I2C interface with open-drain pads

• Two I3C bus interfaces

• A digital microphone interface supporting up to 8

channels with associated decimators and Voice