- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17024 > EA-EDU-009 (Embedded Artists)BOARD EDUCATION LPC2103 PDF資料下載
參數(shù)資料
| 型號： | EA-EDU-009 |
| 廠商： | Embedded Artists |
| 文件頁數(shù)： | 10/37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 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁
LPC2101_02_03_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 2 June 2009
18 of 37
NXP Semiconductors
LPC2101/02/03
Single-chip 16-bit/32-bit microcontrollers
6.17.3 Reset and wake-up timer
Reset has two sources on the LPC2101/02/03: the RST pin and watchdog reset. The RST
pin is a Schmitt trigger input pin with an additional glitch lter. Assertion of chip reset by
any source starts the wake-up timer (see wake-up timer description below), causing the
internal chip reset to remain asserted until the external reset is de-asserted, the oscillator
is running, a xed number of clocks have passed, and the on-chip ash controller has
completed its initialization.
When the internal reset is removed, the processor begins executing at address 0, which is
the reset vector. At that point, all of the processor and peripheral registers have been
initialized to predetermined reset values.
The wake-up timer ensures that the oscillator and other analog functions required for chip
operation are fully functional before the processor is allowed to execute instructions. This
is important at power on, all types of reset, and whenever any of the aforementioned
functions are turned off for any reason. Since the oscillator and other functions are turned
off during Power-down and Deep power-down mode, any wake-up of the processor from
the Power-down modes makes use of the wake-up timer.
The wake-up timer monitors the crystal oscillator as the means of checking whether it is
safe to begin code execution. When power is applied to the chip, or some event caused
the chip to exit Power-down mode, some time is required for the oscillator to produce a
signal of sufcient amplitude to drive the clock logic. The amount of time depends on
many factors, including the rate of VDD ramp (in the case of power on), the type of crystal
and its electrical characteristics (if a quartz crystal is used), as well as any other external
circuitry (e.g., capacitors), and the characteristics of the oscillator itself under the existing
ambient conditions.
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' |
| 0210391015 | CABLE JUMPER 1MM .102M 31POS |
| STD21W-W | WIRE & CABLE MARKERS |
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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。