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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
13 of 1441
1.1 Introduction
The LPC43xx/LPC43Sxx are ARM Cortex-M4 based microcontrollers for embedded
applications which include an ARM Cortex-M0 coprocessor, up to 1 MB of flash, up to 264
kB of SRAM, advanced configurable peripherals such as the State Configurable Timer
(SCTimer/PWM) and the Serial General Purpose I/O (SGPIO) interface, two High-speed
USB controllers, Ethernet, LCD, an external memory controller, and multiple digital and
analog peripherals. The LPC43xx/LPC43Sxx operate at CPU frequencies of up to 204
MHz.
The ARM Cortex-M4 is a next generation 32-bit core that offers system enhancements
such as low power consumption, enhanced debug features, and a high level of support
block integration. 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 LPC43xx/LPC43Sxx contain one or two ARM Cortex-M0 processors to share
computing tasks with the main ARM Cortex-M4 processor. All processors can serve
peripherals.
The ARM Cortex-M0 coprocessor is an energy-efficient and easy-to-use 32-bit core which
is code- and tool-compatible with the Cortex-M4 core. The Cortex-M0 coprocessor,
designed as a replacement for existing 8/16-bit microcontrollers, offers up to 204 MHz
performance with a simple instruction set and reduced code size. In LPC43xx/LPC43Sxx,
the Cortex-M0 coprocessor hardware multiply is implemented as a 32-cycle iterative
multiplier.
See
for related documentation.
1.2 Features
•
Cortex-M4 Processor core
–
ARM Cortex-M4 processor (version r0p1), running at frequencies of up to
204 MHz.
–
ARM Cortex-M4 built-in Memory Protection Unit (MPU) supporting eight regions.
–
ARM Cortex-M4 built-in Nested Vectored Interrupt Controller (NVIC).
–
Hardware floating-point unit.
–
Non-maskable Interrupt (NMI) input.
–
JTAG and Serial Wire Debug (SWD), serial trace, eight breakpoints, and four
watch points.
–
Enhanced Trace Module (ETM) and Enhanced Trace Buffer (ETB) support.
–
System tick timer.
•
Cortex-M0 Processor core (all LPC43xx/LPC43Sxx parts)
UM10503
Chapter 1: Introductory information
Rev. 2.1 — 10 December 2015
User manual