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LPC1311 概述

The LPC1311 are ARM Cortex-M3 based microcontrollers for embedded applications featuring a high level of integration and low power consumption. The ARM Cortex-M3 is a next generation core that offers system enhancements such as enhanced debug features and a higher level of support block integration.

The LPC1311 operate at CPU frequencies of up to 72 MHz. The ARM Cortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture with separate local instruction and data buses as well as a third bus for peripherals. The ARM Cortex-M3 CPU also includes an internal prefetch unit that supports speculative branching.

LPC1311 特性

• ARM Cortex-M3 processor, running at frequencies of up to 72 MHz.
• ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
• 8 kB on-chip flash programming memory.
• 4 kB SRAM.
• In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software.
• Serial Wire Debug and Serial Wire Trace port
• High-current output driver (20 mA) on one pin
• High-current sink drivers (20 mA) on two I2C-bus pins in Fast-mode Plus
• Three reduced power modes: Sleep, Deep-sleep, and Deep power-down
• Single power supply (2.0 V to 3.6 V).
• 10-bit ADC with input multiplexing among 8 pins
• Integrated oscillator with an operating range of 1 MHz to 25 MHz.
• Programmable watchdog oscillator with a frequency range of 7.8 kHz to 1.8 MHz.
• Serial interfaces:
  • UART with fractional baud rate generation, modem, internal FIFO, and RS-485/EIA-485 support.
  • SSP controller with FIFO and multi-protocol capabilities
  • 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 28 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors.
• Four general purpose counter/timers with a total of four capture inputs and 13 match outputs.
• Programmable WatchDog Timer (WDT).
• System tick timer.