- 您现在的位置：买卖IC网 > Sheet目录342 > MCB1114 (Keil)BOARD EVALUATION FOR NXP LPC1114
NXP Semiconductors
LPC1111/12/13/14
7.12.1 Features
? A 32-bit/16-bit timer/counter with a programmable 32-bit/16-bit prescaler.
? Counter or timer operation.
? One capture channel per timer, that can take a snapshot of the timer value when an
input signal transitions. A capture event may also generate an interrupt.
? Four match registers per timer that allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
? Up to four external outputs corresponding to match registers, with the following
capabilities:
– Set LOW on match.
– Set HIGH on match.
– Toggle on match.
– Do nothing on match.
7.13 System tick timer
The ARM Cortex-M0 includes a system tick timer (SYSTICK) that is intended to generate
a dedicated SYSTICK exception at a 10 ms interval.
7.14 Watchdog timer
The purpose of the watchdog is to reset the microcontroller within a reasonable amount of
time if it enters an erroneous state. When enabled, the watchdog will generate a system
reset if the user program fails to ‘feed’ (or reload) the watchdog within a predetermined
amount of time.
7.14.1 Features
? Internally resets chip if not periodically reloaded.
? Debug mode.
? Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
?
?
?
?
Incorrect/Incomplete feed sequence causes reset/interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 32-bit timer with internal prescaler.
Selectable time period from (T cy(WDCLK) × 256 × 4) to (T cy(WDCLK) × 2 32 × 4) in
multiples of T cy(WDCLK) × 4.
? The Watchdog Clock (WDCLK) source can be selected from the Internal RC oscillator
(IRC), the Watchdog oscillator, or the main clock. This gives a wide range of potential
timing choices of Watchdog operation under different power reduction conditions. It
also provides the ability to run the WDT from an entirely internal source that is not
dependent on an external crystal and its associated components and wiring for
increased reliability.
LPC1111_12_13_14_0
? NXP B.V. 2009. All rights reserved.
Objective data sheet
Rev. 00.11 — 13 November 2009
23 of 53
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
MCB11C14
BOARD EVAL FOR NXP LPC11C14
MCB2470
BOARD EVAL NXP LPC247X SERIES
MCBSTM32EXL
BOARD EVALUATION FOR STM32F103ZE
MCBTMPM330
BOARD EVAL TOSHIBA TMPM330 SER
MCIMX25WPDKJ
KIT DEVELOPMENT WINCE IMX25
MCIMX53-START-R
KIT DEVELOPMENT I.MX53
MCM69C432TQ20
IC CAM 1MB 50MHZ 100LQFP
MCP1401T-E/OT
IC MOSFET DRVR INV 500MA SOT23-5
相关代理商/技术参数
MCB1114-ED
制造商:ARM Ltd 功能描述:KEIL NXP LPC1114 EVAL BOARD
MCB1114U
功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC1114 + ULINK2
RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB1114U-ED
制造商:ARM Ltd 功能描述:KEIL NXP LPC1114 EVAL BOARD
MCB1114UME
功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC1114 + ULINK-ME
RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB1114UME-ED
制造商:ARM Ltd 功能描述:KEIL NXP LPC1114 EVAL BOARD
MCB11C14
功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11C14
RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB11C14-ED
制造商:ARM Ltd 功能描述:KEIL NXP LPC11C14 EVAL BOARD
MCB11C14U
功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11C14 + ULINK2
RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V