Datasheet

2.1 System features
The following sections describe the high-level system features.
2.1.1 ARM Cortex-M0+ core
The enhanced ARM Cortex M0+ is the member of the Cortex-M series of processors
targeting microcontroller cores focused on very cost sensitive, low power
applications. It has a single 32-bit AMBA AHB-Lite interface and includes an NVIC
component. It also has hardware debug functionality including support for simple
program trace capability. The processor supports the ARMv6-M instruction set
(Thumb) architecture including all but three 16-bit Thumb opcodes (52 total) plus
seven 32-bit instructions. It is upward compatible with other Cortex-M profile
processors.
2.1.2 NVIC
The Nested Vectored Interrupt Controller supports nested interrupts and 4 priority
levels for interrupts. In the NVIC, each source in the IPR registers contains two bits. It
also differs in number of interrupt sources and supports 32 interrupt vectors.
The Cortex-M family uses a number of methods to improve interrupt latency to up to
15 clock cycles for Cortex-M0+. It also can be used to wake the MCU core from Wait
and VLPW modes.
2.1.3
AWIC
The asynchronous wake-up interrupt controller (AWIC) is used to detect
asynchronous wake-up events in Stop mode and signal to clock control logic to
resume system clocking. After clock restarts, the NVIC observes the pending interrupt
and performs the normal interrupt or event processing. The AWIC can be used to
wake MCU core from Stop and VLPS modes.
Wake-up sources are listed as below:
Overview
Kinetis KL82 Microcontroller, Rev. 3, 08/2016
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NXP Semiconductors