LPC2141 datasheet(12/38 Pages) PHILIPS

No de pièce	LPC2141

Description	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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12 / 38 page

9397 750 14985

Preliminary data sheet

Rev. 01 — 3 October 2005

12 of 38

Philips Semiconductors

LPC2141/42/44/46/48

Single-chip 16-bit/32-bit microcontrollers

6.

Functional description

6.1 Architectural overview

The ARM7TDMI-S is a general purpose 32-bit microprocessor, which offers high

performance and very low power consumption. The ARM architecture is based on

Reduced Instruction Set Computer (RISC) principles, and the instruction set and related

decode mechanism are much simpler than those of microprogrammed Complex

Instruction Set Computers (CISC). This simplicity results in a high instruction throughput

and impressive real-time interrupt response from a small and cost-effective processor

core.

Pipeline techniques are employed so that all parts of the processing and memory systems

can operate continuously. Typically, while one instruction is being executed, its successor

is being decoded, and a third instruction is being fetched from memory.

The ARM7TDMI-S processor also employs a unique architectural strategy known as

Thumb, which makes it ideally suited to high-volume applications with memory

restrictions, or applications where code density is an issue.

The key idea behind Thumb is that of a super-reduced instruction set. Essentially, the

ARM7TDMI-S processor has two instruction sets:

• The standard 32-bit ARM set.

• A 16-bit Thumb set.

The Thumb set’s 16-bit instruction length allows it to approach twice the density of

standard ARM code while retaining most of the ARM’s performance advantage over a

traditional 16-bit processor using 16-bit registers. This is possible because Thumb code

operates on the same 32-bit register set as ARM code.

Thumb code is able to provide up to 65 % of the code size of ARM, and 160 % of the

performance of an equivalent ARM processor connected to a 16-bit memory system.

The particular ﬂash implementation in the LPC2141/42/44/46/48 allows for full speed

execution also in ARM mode. It is recommended to program performance critical and

short code sections (such as interrupt service routines and DSP algorithms) in ARM

mode. The impact on the overall code size will be minimal but the speed can be increased

by 30 % over Thumb mode.

6.2 On-chip ﬂash program memory

The LPC2141/42/44/46/48 incorporate a 32 kB, 64 kB, 128 kB, 256 kB and 512 kB ﬂash

memory system respectively. This memory may be used for both code and data storage.

Programming of the ﬂash memory may be accomplished in several ways. It may be

programmed In System via the serial port. The application program may also erase and/or

program the ﬂash while the application is running, allowing a great degree of ﬂexibility for

data storage ﬁeld ﬁrmware upgrades, etc. Due to the architectural solution chosen for an

on-chip boot loader, ﬂash memory available for user’s code on LPC2141/42/44/46/48 is

32 kB, 64 kB, 128 kB, 256 kB and 500 kB respectively.

The LPC2141/42/44/46/48 ﬂash memory provides a minimum of 100,000 erase/write

cycles and 20 years of data-retention.

Numéro de pièce similaire - LPC2141

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	LPC2141	189Kb / 39P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC Rev. 03-19 October 2007
	LPC2141	192Kb / 40P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC Rev. 04-17 November 2008
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	LPC2141	4Mb / 12P	NXP Microcontrollers Selection Guide November 2012
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Description similaire - LPC2141

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	LPC2141	413Kb / 45P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC Rev. 5-12 August 2011
	LPC2141	192Kb / 40P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC Rev. 04-17 November 2008
	LPC2141	189Kb / 39P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC Rev. 03-19 October 2007
	LPC2141FBD64-S	413Kb / 45P	Single-chip 16-bit/32-bit ocontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC Rev. 5-12 August 2011
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	LPC2364	1Mb / 48P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC/DAC Rev. 01-22 September 2006
	LPC2364	983Kb / 59P	Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC/DAC Rev. 06-1 February 2010
	LPC2378	253Kb / 54P	Single-chip 16-bit/32-bit microcontrollers; 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC/DAC Rev. 01-6 December 2006
	LPC2377	351Kb / 69P	Single-chip 16-bit/32-bit microcontrollers; 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC/DAC Rev. 6.1??6 October 2013
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