參數(shù)資料
型號(hào)： LPC2214FBD144
廠商： NXP Semiconductors N.V.
元件分類： 數(shù)學(xué)處理器
英文描述： Single-chip 16-32-bit ARM microcontrollers; 128-256 kB ISP-IAP flash with 10-bit ADC and external memory interface
封裝： LPC2212FBD144/01<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486-1.html<1<Always Pb-free,;LPC2214FBD144/01<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486
文件頁(yè)數(shù)： 24/47頁(yè)
文件大?。?/td> 337K
代理商： LPC2214FBD144
LPC2212_2214
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 14 June 2011
24 of 47
NXP Semiconductors
LPC2212/2214
Single-chip 16/32-bit ARM microcontrollers
6.18.6
Memory mapping control
The Memory Mapping Control alters the mapping of the interrupt vectors that appear
beginning at address 0x0000 0000. Vectors may be mapped to the bottom of the on-chip
flash memory, or to the on-chip static RAM. This allows code running in different memory
spaces to have control of the interrupts.
6.18.7
Power control
The LPC2212/2214 support two reduced power modes: Idle mode and Power-down
mode. In Idle mode, execution of instructions is suspended until either a Reset or interrupt
occurs. Peripheral functions continue operation during Idle mode and may generate
interrupts to cause the processor to resume execution. Idle mode eliminates power used
by the processor itself, memory systems and related controllers, and internal buses.
In Power-down mode, the oscillator is shut down and the chip receives no internal clocks.
The processor state and registers, peripheral registers, and internal SRAM values are
preserved throughout Power-down mode and the logic levels of chip output pins remain
static. The Power-down mode can be terminated and normal operation resumed by either
a Reset or certain specific interrupts that are able to function without clocks. Since all
dynamic operation of the chip is suspended, Power-down mode reduces chip power
consumption to nearly zero.
A Power Control for Peripherals feature allows individual peripherals to be turned off if
they are not needed in the application, resulting in additional power savings.
6.18.8
APB
The APB divider determines the relationship between the processor clock (CCLK) and the
clock used by peripheral devices (PCLK). The APB divider serves two purposes. The first
is to provide peripherals with the desired PCLK via APB so that they can operate at the
speed chosen for the ARM processor. In order to achieve this, the APB may be slowed
down to
1
2
to
1
4
of the processor clock rate. Because the APB bus must work properly at
power-up (and its timing cannot be altered if it does not work since the APB divider control
registers reside on the APB), the default condition at reset is for the APB to run at
1
4
of the
processor clock rate. The second purpose of the APB divider is to allow power savings
when an application does not require any peripherals to run at the full processor rate.
Because the APB divider is connected to the PLL output, the PLL remains active (if it was
running) during Idle mode.
6.19 Emulation and debugging
The LPC2212/2214 support emulation and debugging via a JTAG serial port. A trace port
allows tracing program execution. Debugging and trace functions are multiplexed only
with GPIOs on Port 1. This means that all communication, timer and interface peripherals
residing on Port 0 are available during the development and debugging phase as they are
when the application is run in the embedded system itself.
6.19.1
EmbeddedICE
Standard ARM EmbeddedICE logic provides on-chip debug support. The debugging of
the target system requires a host computer running the debugger software and an
EmbeddedICE protocol convertor. EmbeddedICE protocol convertor converts the Remote
Debug Protocol commands to the JTAG data needed to access the ARM core.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC2214FBD144,551 功能描述:ARM微控制器 - MCU PREF PART LPC2214FBD144/01-S RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
LPC2214FBD144,557 制造商:NXP Semiconductors 功能描述:IC,MCU ARM7, 144LQFP
LPC2214FBD144/00 制造商:NXP Semiconductors 功能描述:16/32BIT ARM7 MCU 128K FLASH SMD
LPC2214FBD144/00,5 制造商:NXP Semiconductors 功能描述:MCU 16-Bit/32-Bit LPC2000 ARM7TDMI-S RISC 256KB Flash 1.8V/3.3V 144-Pin LQFP Tray
LPC2214FBD144/00,551 制造商:NXP 功能描述:0
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