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參數資料
| 型號： | LPC2114 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP Flash with 10-bit ADC |
| 中文描述： | 單片16/32位微控制器，128/256 kB ISP / IAP閃存的10位ADC |
| 文件頁數： | 23/34頁 |
| 文件大?。?/td> | 161K |
| 代理商： | LPC2114 |
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Philips Semiconductors
LPC2114/LPC2124
Single-chip 16/32-bit microcontrollers
Product data
Rev. 03 — 22 December 2004
23 of 34
9397 750 13145
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
6.19.5
Memory Mapping Control
The Memory Mapping Control alters the mapping of the interrupt vectors that appear
beginning at address 0x00000000. 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.
6.19.6
Power Control
The LPC2114/LPC2124 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.
6.19.7
VPB bus
The VPB divider determines the relationship between the processor clock (CCLK)
and the clock used by peripheral devices (PCLK). The VPB divider serves two
purposes. The first is to provide peripherals with the desired PCLK via VPB bus so
that they can operate at the speed chosen for the ARM processor. In order to achieve
this, the VPB bus may be slowed down to
1
2
to
1
4
of the processor clock rate.
Because the VPB bus must work properly at power-up (and its timing cannot be
altered if it does not work since the VPB divider control registers reside on the VPB
bus), the default condition at reset is for the VPB bus to run at
1
4
of the processor
clock rate. The second purpose of the VPB divider is to allow power savings when an
application does not require any peripherals to run at the full processor rate. Because
the VPB divider is connected to the PLL output, the PLL remains active (if it was
running) during Idle mode.
6.20 Emulation and debugging
The LPC2114/LPC2124 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.
相關PDF資料 |
PDF描述 |
|---|---|
| LPC2124 | Single Chip 32-bit Microcontroller Erratasheet |
| LPC2131 | Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP Flash with 10-bit ADC and DAC |
| LPC2132 | Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP Flash with 10-bit ADC and DAC |
| LPC2142 | Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC |
| LPC2141 | Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LPC2114_11 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP flash with 10-bit ADC |
| LPC2114FBD01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP flash with 10-bit ADC |
| LPC2114FBD64 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP flash with 10-bit ADC |
| LPC2114FBD64,151 | 功能描述:ARM微控制器 - MCU PREF PART LPC2114FBD64/01-S RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數據總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數據 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 安裝風格:SMD/SMT |
| LPC2114FBD64/00 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP flash with 10-bit ADC |
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