參數(shù)資料
型號: OM13032,598
廠商: NXP Semiconductors
文件頁數(shù): 19/74頁
文件大?。?/td> 0K
描述: BOARD EVAL LPC11U24
標(biāo)準(zhǔn)包裝: 1
類型: MCU
適用于相關(guān)產(chǎn)品: LPC11U24
所含物品:
其它名稱: 568-8599
LPC11U2X
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2.2 — 11 March 2014
26 of 74
NXP Semiconductors
LPC11U2x
32-bit ARM Cortex-M0 microcontroller
Power-down mode reduces power consumption compared to Deep-sleep mode at the
expense of longer wake-up times.
7.17.5.5
Deep power-down mode
In Deep power-down mode, power is shut off to the entire chip except for the WAKEUP
pin. The LPC11U2x can wake up from Deep power-down mode via the WAKEUP pin.
The LPC11U2x can be prevented from entering Deep power-down mode by setting a lock
bit in the PMU block. Locking out Deep power-down mode enables the application to keep
the watchdog timer or the BOD running at all times.
When entering Deep power-down mode, an external pull-up resistor is required on the
WAKEUP pin to hold it HIGH. Pull the RESET pin HIGH to prevent it from floating while in
Deep power-down mode.
7.17.6 System control
7.17.6.1
Reset
Reset has four sources on the LPC11U2x: the RESET pin, the Watchdog reset, power-on
reset (POR), and the BrownOut Detection (BOD) circuit. The RESET pin is a Schmitt
trigger input pin. Assertion of chip reset by any source, once the operating voltage attains
a usable level, starts the IRC and initializes the flash controller.
A LOW-going pulse as short as 50 ns resets the part.
When the internal Reset is removed, the processor begins executing at address 0, which
is initially the Reset vector mapped from the boot block. At that point, all of the processor
and peripheral registers have been initialized to predetermined values.
In Deep power-down mode, an external pull-up resistor is required on the RESET pin.
7.17.6.2
Brownout detection
The LPC11U2x includes four levels for monitoring the voltage on the VDD pin. If this
voltage falls below one of the four selected levels, the BOD asserts an interrupt signal to
the NVIC. This signal can be enabled for interrupt in the Interrupt Enable Register in the
NVIC to cause a CPU interrupt. Alternatively, software can monitor the signal by reading a
dedicated status register. Four additional threshold levels can be selected to cause a
forced reset of the chip.
7.17.6.3
Code security (Code Read Protection - CRP)
CRP provides different levels of security in the system so that access to the on-chip flash
and use of the Serial Wire Debugger (SWD) and In-System Programming (ISP) can be
restricted. Programming a specific pattern into a dedicated flash location invokes CRP.
IAP commands are not affected by the CRP.
In addition, ISP entry via the PIO0_1 pin can be disabled without enabling CRP. For
details, see the LPC11Uxx user manual.
There are three levels of Code Read Protection:
相關(guān)PDF資料
PDF描述
12RS153C INDUCTOR RAD 15UH 4A T/H 10X10
V375C12C75B2 CONVERTER MOD DC/DC 12V 75W
GSM11DSEN-S243 CONN EDGECARD 22POS .156 EYELET
LTC1558CS-3.3#TRPBF IC BACKUP BATT CNTRLR3.3V 16SOIC
V375C12C75B CONVERTER MOD DC/DC 12V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OM13033 制造商:NXP Semiconductors 功能描述:EVAL ARM NGX LPC11U24 制造商:NXP Semiconductors 功能描述:LPC11U24, NGX, KEIL, EVAL BOARD 制造商:NXP Semiconductors 功能描述:LPC11U24, NGX, KEIL, EVAL BOARD; Silicon Manufacturer:NXP; Core Architecture:ARM; Core Sub-Architecture:Cortex-M0; Silicon Core Number:LPC11xxx; Silicon Family Name:LPC11Uxx; Features:Evaluation Board for LPC11U24 Microcontroller; ;RoHS Compliant: Yes
OM13033,598 功能描述:開發(fā)板和工具包 - ARM NGX LPC11U24 Eval Board 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
OM13033598 制造商:NXP Semiconductors 功能描述:EVAL ARM NGX LPC11U24
OM13034,598 制造商:NXP Semiconductors 功能描述:EVAL, IAR, LPC1347, J-LINK LITE 制造商:NXP Semiconductors 功能描述:EVAL, IAR, LPC1347, J-LINK LITE, Silicon Manufacturer:NXP, Core Architecture:ARM 制造商:NXP Semiconductors 功能描述:EVAL, IAR, LPC1347, J-LINK LITE, Silicon Manufacturer:NXP, Core Architecture:ARM, Core Sub-Architecture:Cortex-M3, Silicon Core Number:LPC1347, Silicon Family Name:LPC1300, Kit Contents:Evaluation Board for LPC1347 , RoHS Compliant: Yes
OM13034598 制造商:NXP Semiconductors 功能描述:EVAL IAR LPC1347 J-LINK LITE