![NXP Semiconductors LPC43Sxx Скачать руководство пользователя страница 26](http://html1.mh-extra.com/html/nxp-semiconductors/lpc43sxx/lpc43sxx_user-manual_1721827026.webp)
UM10503
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
26 of 1441
NXP Semiconductors
UM10503
Chapter 1: Introductory information
1.7 ARM core features
1.7.1 ARM Cortex-M4 processor
The ARM Cortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture
with separate local instruction and data buses as well as a third bus for peripherals, and
includes an internal prefetch unit that supports speculative branching. The ARM
Cortex-M4 supports single-cycle digital signal processing and SIMD instructions. A
hardware floating-point processor is integrated in the core. The processor includes an
NVIC with up to 53 interrupts.
The ARM Cortex-M4 is implemented with a Memory Protection Unit supporting eight
regions, a hardware Floating Point Unit (FPU), debugging features, and a system tick
timer.
1.7.2 ARM Cortex-M0 co-processors
The ARM Cortex-M0 is a general purpose, 32-bit microprocessor, which offers high
performance and very low-power consumption. The ARM Cortex-M0 co-processor uses a
3-stage pipeline von-Neumann architecture and a small but powerful instruction set
providing high-end processing hardware. The co-processor incorporates an NVIC with up
to 32 interrupts.
Both ARM Cortex-M0 cores are implemented in the same way supporting a 32-cycle
multiplier and debug features. A system tick timer is not included.