PIMXRT406LCAF4A datasheet(10/100 Pages) NXP

10 / 100 page

i.MX RT1020 Crossover Processors for Industrial Products, Rev. 2, 03/2021

NXP Semiconductors

Modules list

eDMA

enhanced Direct Memory

Access

System Control

Peripherals

There is an enhanced DMA (eDMA) engine and two

DMA_MUX.

• The eDMA is a 32 channel DMA engine, which is

capable of performing complex data transfers with

minimal intervention from a host processor.

• The DMA_MUX is capable of multiplexing up to 128

DMA request sources to the 32 DMA channels of

eDMA.

ENC

Quadrature

Encoder/Decoder

Timer Peripherals

The enhanced quadrature encoder/decoder module

provides interfacing capability to position/speed

sensors. There are five input signals: PHASEA,

PHASEB, INDEX, TRIGGER, and HOME. This module

is used to decode shaft position, revolution count, and

speed.

ENET

Ethernet Controller

Connectivity

Peripherals

The Ethernet Media Access Controller (MAC) is

designed to support 10/100 Mbit/s Ethernet/IEEE 802.3

networks. An external transceiver interface and

transceiver function are required to complete the

interface to the media. The module has dedicated

hardware to support the IEEE 1588 standard. See the

ENET chapter of the reference manual for details.

EWM

External Watchdog

Monitor

Timer Peripherals

The EWM modules is designed to monitor external

circuits, as well as the software flow. This provides a

back-up mechanism to the internal WDOG that can

reset the system. The EWM differs from the internal

WDOG in that it does not reset the system. The EWM,

if allowed to time-out, provides an independent trigger

pin that when asserted resets or places an external

circuit into a safe mode.

FLEXCAN1

FLEXCAN2

Flexible Controller Area

Network

Connectivity

Peripherals

The CAN protocol was primarily, but not only, designed

to be used as a vehicle serial data bus, meeting the

specific requirements of this field: real-time processing,

reliable operation in the Electromagnetic interference

(EMI) environment of a vehicle, cost-effectiveness and

required bandwidth. The FlexCAN module is a full

implementation of the CAN protocol specification,

Version 2.0 B, which supports both standard and

extended message frames.

FlexIO1

Flexible Input/output

Connectivity and

Communications

The FlexIO is capable of supporting a wide range of

protocols including, but not limited to: UART, I2C, SPI,

I2S, camera interface, display interface, PWM

waveform generation, etc. The module can remain

functional when the chip is in a low power mode

provided the clock it is using remain active.

Table 3. i.MX RT1020 modules list (continued)

Block mnemonic

Block name

Subsystem

Brief description

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