NXP公司的LPC1111/12/13/14是低成本32位ARM Cortex-M0微控制器(MCU),多達(dá)32kB閃存和8kB SRAM,設(shè)計(jì)用于8/16位MCU應(yīng)用,和現(xiàn)有的8/16位MCU相比,具有高性能,低功耗,簡單指令集和存儲器尋址和降低代碼大小,CPU工作頻率高達(dá)50MHz,主要用在電子儀表,照明,工業(yè)網(wǎng)絡(luò),告警系統(tǒng)和白色家電.本文介紹了LPC1111/12/13/14主要特性,方框圖以及Embest NXP LPC1114 入門開發(fā)套件主要特性和電路圖.

LPC1111/12/13/14: 32-bit ARM Cortex-M0 microcontroller; up to 32 kB flash and 8 kB SRAM

The LPC1111/12/13/14 are a ARM Cortex-M0 based, low-cost 32-bit MCU family, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size compared to existing 8/16-bit architectures.

The LPC1111/12/13/14 operate at CPU frequencies of up to 50 MHz.

The peripheral complement of the LPC1111/12/13/14 includes up to 32 kB of flash memory, up to 8 kB of data memory, one Fast-mode Plus I2C-bus interface, one RS-485/EIA-485 UART, up to two SPI interfaces with SSP features, four general purpose timers, a 10-bit ADC, and up to 42 general purpose I/O pins.

LPC1111/12/13/14主要特性:

?? ARM Cortex-M0 processor, running at frequencies of up to 50 MHz.

?? ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC).

?? 32 kB (LPC1114), 24 kB (LPC1113), 16 kB (LPC1112), or 8 kB (LPC1111) on-chip flash programming memory.

?? 8 kB, 4 kB, or 2 kB SRAM.

?? In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software.

?? Serial interfaces:

?? UART with fractional baud rate generation, internal FIFO, and RS-485 support.

?? Two SPI controllers with SSP features and with FIFO and multi-protocol capabilities (second SPI on LQFP48 and PLCC44 packages only).

?? I2C-bus interface supporting full I2C-bus specification and Fast-mode Plus with a data rate of 1 Mbit/s with multiple address recognition and monitor mode.

?? Other peripherals:

?? Up to 42 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors.

?? Four general purpose timers/counters with a total of four capture inputs and 13 match outputs.

?? Programmable WatchDog Timer (WDT).

?? System tick timer.

?? Serial Wire Debug.

?? High-current output driver (20 mA) on one pin.

?? High-current sink drivers (20 mA) on two I2C-bus pins in Fast-mode Plus.

?? Integrated PMU (Power Management Unit) to minimize power consumption during Sleep, Deep-sleep, and Deep power-down modes.

?? Three reduced power modes: Sleep, Deep-sleep, and Deep power-down.

?? Single 3.3 V power supply (1.8 V to 3.6 V).

?? 10-bit ADC with input multiplexing among 8 pins.

?? GPIO pins can be used as edge and level sensitive interrupt sources.

?? Clock output function with divider that can reflect the system oscillator clock, IRC clock, CPU clock, and the Watchdog clock.

?? Processor wake-up from Deep-sleep mode via a dedicated start logic using up to 13 of the functional pins.

?? Brownout detect with four separate thresholds for interrupt and one threshold for forced reset.

?? Power-On Reset (POR).

?? Crystal oscillator with an operating range of 1 MHz to 25 MHz.

?? 12 MHz internal RC oscillator trimmed to 1 % accuracy that can optionally be used as a system clock.

?? PLL allows CPU operation up to the maximum CPU rate without the need for a high-frequency crystal. May be run from the main oscillator, the internal RC oscillator, or the watchdog oscillator.

?? Available as 48-pin LQFP package, 33-pin HVQFN package, and 44-pin PLCC Package.

LPC1111/12/13/14應(yīng)用:

?? eMetering

?? Lighting

?? Industrial networking

?? Alarm systems

?? White goods


圖1.LPC1111/12/13/14方框圖

The LPC11xx are ARM Cortex-M0 based microcontrollers (designed for 8/16-bit microcontroller applications) for embedded applications featuring a high level of integration and low power consumption. The LPC11xx operate at CPU frequencies of up to 50 MHz. The peripheral complement of the LPC11xx series includes up to 32 KB of flash memory, up to 8 KB of data memory, one Fast-mode Plus I2C-bus interface, one RS-485/EIA-485 UART, up to two SPI interfaces with SSP features, four general purpose timers, a 10-bit ADC, and up to 42 general purpose I/O pins.

The LPC11xx operates in the –65 to +150 °C temperature range, from a 1.8 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.

LPC1114入門套件

The LPC1114 Starter Kit is a brand new, cost-effective but high-performance evaluation tool of the ARM Cortex-M0 based LPC11xx controller family from NXP, allowing you to create and test working programs for this advanced architecture. The board has a wide range of interfaces making it a great starting point for your next Cortex-M0 project.

You can use the Cortex-M0 based LPC1114 KIT to generate and test application programs for the NXP LPC11xx microcontroller family. With this hands-on process, you can determine the hardware and software requirements for current and future product development.

圖2.NXP LPC1114入門套件外形圖

圖3.NXP LPC1114入門套件電路圖(1)

圖4.NXP LPC1114入門套件電路圖(2)