UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
4 of 1269
1.1 Introduction
The LPC43xx 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 (SCT)
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 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 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.
1.2 Features
•
Cortex-M4 Processor core
–
ARM Cortex-M4 processor, 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
–
ARM Cortex-M0 co-processor capable of off-loading the main ARM Cortex-M4
application processor.
–
Running at frequencies of up to 204 MHz.
–
JTAG, Serial Wire Debug, and built-in NVIC.
•
On-chip memory (flashless parts)
–
Up to 264 kB SRAM for code and data use.
UM10503
Chapter 1: Introductory information
Rev. 1.3 — 6 July 2012
User manual
