參數(shù)資料
型號： EA-EDU-009
廠商： Embedded Artists
文件頁數(shù)： 2/37頁
文件大?。?/td> 0K
描述： BOARD EDUCATION LPC2103
標準包裝： 1
類型： MCU
適用于相關產(chǎn)品： LPC2103
所含物品： 板
LPC2101_02_03_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 2 June 2009
10 of 37
NXP Semiconductors
LPC2101/02/03
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 ash implementation in the LPC2101/02/03 allows for full speed execution
also in ARM mode. It is recommended to program performance critical and short code
sections 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 ash program memory
The LPC2101/02/03 incorporate a 8 kB, 16 kB or 32 kB ash memory system
respectively. This memory may be used for both code and data storage. Programming of
the ash 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 ash while
the application is running, allowing a great degree of exibility for data storage eld
rmware upgrades, etc. The entire ash memory is available for user code as the
bootloader resides in a separate memory.
The LPC2101/02/03 ash memory provides a minimum of 100,000 erase/write cycles and
20 years of data-retention memory.
相關PDF資料
PDF描述
0210490228 CABLE JUMPER 1.25MM .229M 16POS
0210490227 CABLE JUMPER 1.25MM .229M 16POS
IL13-US1-SVT-3100-183 LOCKING LINE CORD 3 COND US 6'
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相關代理商/技術參數(shù)
參數(shù)描述
EA-EDU-010 功能描述:開發(fā)板和工具包 - ARM LPC2138 EDUCATION BRD RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
EA-EDU-011 功能描述:開發(fā)板和工具包 - ARM EXPERIMENT EXPANSION BRD RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
EA-EL 3160-60 制造商:EA ELEKTRO-AUTOMATIK 功能描述:ELECTRONIC LOAD, 160V / 60A, EURO+UK
EA-EL 3160-60 制造商:EA Electro-Automatik GmbH 功能描述:ELECTRONIC LOAD 160V / 60A
EA-EL 3400-25 制造商:EA Electro-Automatik GmbH 功能描述:ELECTRONIC LOAD, 400V / 25A, EURO+UK
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