參數(shù)資料
型號(hào): LPC2131
廠商: NXP Semiconductors N.V.
英文描述: Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP Flash with 10-bit ADC and DAC
中文描述: 16/32位 單片微控制器;有10位數(shù)模/模數(shù)轉(zhuǎn)換,32/64/512kB的ISP/IAP flash閃存
文件頁(yè)數(shù): 27/41頁(yè)
文件大?。?/td> 190K
代理商: LPC2131
9397 750 14868
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 02 — 15 April 2005
27 of 41
Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
6.21.7
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.
6.21.8
Power Control
The LPC2131/2132/2134/2136/2138 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.
Selecting an external 32 kHz clock instead of the PCLK as a clock-source for the on-chip
RTC will enable the microcontroller to have the RTC active during Power-down mode.
Power-down current is increased with RTC active. However, it is significantly lower than in
Idle mode.
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.
6.21.9
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.
6.22 Emulation and debugging
The LPC2131/2132/2134/2136/2138 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(guān)PDF資料
PDF描述
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
LPC2144 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
LPC2146 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(guān)代理商/技術(shù)參數(shù)
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LPC2131FBD64/01 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64, Controller Family/Series:LPC2100, Core Size:16 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64, Controller Family/Series:LPC2100, Core Size:16bit / 32bit, No. of I/O's:47, Supply Voltage Min:3V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:64, Program Memory Size:32KB, RAM
LPC2131FBD64/01,11 功能描述:ARM微控制器 - MCU 32K FL/8K RAM 10BIT ADC/DAC 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