K32L2AX datasheet(8/96 Pages) NXP

8 / 96 page

Table 2. AWIC stop wake-up sources (continued)

Wake-up source

Description

LPI2C

Any enabled interrupt can be a source as long as the module remains clocked

LPUART

Any enabled interrupt can be a source as long as the module remains clocked

RTC

Alarm or seconds interrupt

TSI

Any enabled interrupt can be a source as long as the module remains clocked

NMI

NMI_b pin

TPM

Any enabled interrupt can be a source as long as the module remains clocked

LPTMR

Any enabled interrupt can be a source as long as the module remains clocked

LPSPI

Any enabled interrupt can be a source as long as the module remains clocked

LPIT

Any enabled interrupt can be a source as long as the module remains clocked

FlexIO

Any enabled interrupt can be a source as long as the module remains clocked

USB

Wake-up

2.1.4 Memory

This device has the following features:

• 128 KB SRAM that can be accessed by bus masters through the cross-bar switch.

• Peripherals (LPUART, LPI2C, LPSPI , USB) supported by the ROM Bootloader.

The program flash memory contains a 16-byte flash configuration field that stores

default protection settings and security information. The page size of program flash

is 1 KB.

The protection setting can protect 32 regions of the program flash memory from

unintended erase or program operations.

The security circuitry prevents unauthorized access to RAM or flash contents from

debug port.

• System register file

This device contains a 32-byte register file that is powered in all power modes.

Also, it retains contents during low-voltage detect (LVD) events and is only reset

during a power-on reset.

2.1.5 Reset and boot

The following table lists all the reset sources supported by this device.

Overview

K32 L2A Microcontroller with 512 KB Flash and 128 KB SRAM, Rev. 3, 02/2021

NXP Semiconductors

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