PIMXRT406LCFP4A datasheet(11/100 Pages) NXP

11 / 100 page

Modules list

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

NXP Semiconductors

FlexPWM1

FlexPWM2

Pulse Width Modulation

Timer Peripherals

The pulse-width modulator (PWM) contains four PWM

sub-modules, each of which is set up to control a single

half-bridge power stage. Fault channel support is

provided. The PWM module can generate various

switching patterns, including highly sophisticated

waveforms.

FlexRAM

RAM

Memories

The i.MX RT1020 has 256 KB of on-chip RAM which

could be flexible allocated to I-TCM, D-TCM, and

on-chip RAM (OCRAM) in a 32 KB granularity. The

FlexRAM is the manager of the 256 KB on-chip RAM

array. Major functions of this blocks are: interfacing to

I-TCM and D-TCM of Arm core and OCRAM controller;

dynamic RAM arrays allocation for I-TCM, D-TCM, and

OCRAM.

FlexSPI

Quad Serial Peripheral

Interface

Connectivity and

Communications

FlexSPI acts as an interface to one or two external

serial flash devices, each with up to four bidirectional

data lines.

GPIO1

GPIO2

GPIO3

GPIO5

General Purpose I/O

Modules

System Control

Peripherals

Used for general purpose input/output to external ICs.

Each GPIO module supports up to 32 bits of I/O.

GPT1

GPT2

General Purpose Timer

Timer Peripherals

Each GPT is a 32-bit “free-running” or “set and forget”

mode timer with programmable prescaler and compare

and capture register. A timer counter value can be

captured using an external event and can be configured

to trigger a capture event on either the leading or trailing

edges of an input pulse. When the timer is configured to

operate in “set and forget” mode, it is capable of

providing precise interrupts at regular intervals with

minimal processor intervention. The counter has output

compare logic to provide the status and interrupt at

comparison. This timer can be configured to run either

on an external clock or on an internal clock.

KPP

Keypad Port

Human Machine

Interfaces

The KPP is a 16-bit peripheral that can be used as a

keypad matrix interface or as general purpose

input/output (I/O). It supports 8 x 8 external key pad

matrix. Main features are:

• Multiple-key detection

• Long key-press detection

• Standby key-press detection

• Supports a 2-point and 3-point contact key matrix

LPI2C1

LPI2C2

LPI2C3

LPI2C4

Low Power

Inter-integrated Circuit

Connectivity and

Communications

The LPI2C is a low power Inter-Integrated Circuit (I2C)

module that supports an efficient interface to an I2C bus

as a master.

The I2C provides a method of communication between

a number of external devices. More detailed

information, see Section 4.8.2, LPI2C module timing

parameters.

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

Block mnemonic

Block name

Subsystem

Brief description

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