K32L3A datasheet(10/162 Pages) NXP

10 / 162 page

• 384 KB of embedded RAM accessible (read/write) at CPU clock speed with 0 wait

states.

• 4 KB of embedded RAM used for flash programming acceleration RAM

• The non-volatile memory is divided into two arrays

• 2 blocks of program flash, providing 1 MB consisting of 4 KB sectors for CM4

• 1 block of program flash, providing 256 KB consisting of 2 KB sectors for

CM0+

The primary program flash memory contains an IFR space that stores default

protection settings and security information.

The protection setting can protect 64 regions of the primary program flash memory

and 16 regions of the secondary 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 power modes and is reset only during a power-

on reset.

• VBAT register file

This device includes a 32-byte register file. The register file is powered by the

VBAT domain and is powered in all modes as long as power is applied to the

VBAT supply.

The VBAT register file is only reset during the VBAT Power-on Reset

(PORVBAT) sequence.

2.1.6 Reset and boot

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

NOTE

In the following table, Y means the specific module, except

for the registers, bits or conditions mentioned in the footnote,

is reset by the corresponding Reset source. N means the

Overview

K32L3A, Rev. 1, 09/2019

NXP Semiconductors

K32L3A Datasheet(PDF) 10 Page - NXP Semiconductors