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| <section id="nxp-lpc214x"> |
| <h1>NXP LPC214x<a class="headerlink" href="#nxp-lpc214x" title="Permalink to this heading"></a></h1> |
| <p>Support is provided for the NXP LPC214x family of |
| processors. In particular, support is provided for (1) the mcu123.com |
| lpc214x evaluation board (LPC2148) and (1) the The0.net ZPA213X/4XPA |
| development board (with the The0.net UG-2864AMBAG01 OLED) This port also |
| used the GNU arm-nuttx-elf toolchain* under Linux or Cygwin.</p> |
| <p><a class="reference external" href="http://www.nxp.com/pip/LPC2141FBD64.html">http://www.nxp.com/pip/LPC2141FBD64.html</a></p> |
| <p>The LPC2141/42/44/46/48 microcontrollers are based on a 16-bit/32-bit ARM7TDMI-S |
| CPU with real-time emulation and embedded trace support, that combine |
| microcontroller with embedded high-speed flash memory ranging from 32 kB to |
| 512 kB. A 128-bit wide memory interface and a unique accelerator architecture |
| enable 32-bit code execution at the maximum clock rate. For critical code size |
| applications, the alternative 16-bit Thumb mode reduces code by more than 30 pct |
| with minimal performance penalty.</p> |
| <p>Due to their tiny size and low power consumption, LPC2141/42/44/46/48 are ideal |
| for applications where miniaturization is a key requirement, such as access |
| control and point-of-sale. Serial communications interfaces ranging from a USB 2.0 |
| Full-speed device, multiple UARTs, SPI, SSP to I2C-bus and on-chip SRAM of 8 kB |
| up to 40 kB, make these devices very well suited for communication gateways and |
| protocol converters, soft modems, voice recognition and low end imaging, providing |
| both large buffer size and high processing power. Various 32-bit timers, single |
| or dual 10-bit ADC(s), 10-bit DAC, PWM channels and 45 fast GPIO lines with up |
| to nine edge or level sensitive external interrupt pins make these microcontrollers |
| suitable for industrial control and medical systems.</p> |
| <section id="features"> |
| <h2>Features<a class="headerlink" href="#features" title="Permalink to this heading"></a></h2> |
| <ul class="simple"> |
| <li><p>16-bit/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.</p></li> |
| <li><p>8 kB to 40 kB of on-chip static RAM and 32 kB to 512 kB of on-chip flash memory. |
| 128-bit wide interface/accelerator enables high-speed 60 MHz operation.</p></li> |
| <li><p>In-System Programming/In-Application Programming (ISP/IAP) via on-chip boot |
| loader software. Single flash sector or full chip erase in 400 ms and programming |
| of 256 B in 1 ms.</p></li> |
| <li><p>EmbeddedICE RT and Embedded Trace interfaces offer real-time debugging with the |
| on-chip RealMonitor software and high-speed tracing of instruction execution.</p></li> |
| <li><p>USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM. In addition, |
| the LPC2146/48 provides 8 kB of on-chip RAM accessible to USB by DMA.</p></li> |
| <li><p>One or two (LPC2141/42 vs. LPC2144/46/48) 10-bit ADCs provide a total of 6/14 analog |
| inputs, with conversion times as low as 2.44 us per channel.</p></li> |
| <li><p>Single 10-bit DAC provides variable analog output (LPC2142/44/46/48 only).</p></li> |
| <li><p>Two 32-bit timers/external event counters (with four capture and four compare |
| channels each), PWM unit (six outputs) and watchdog.</p></li> |
| <li><p>Low power Real-Time Clock (RTC) with independent power and 32 kHz clock input.</p></li> |
| <li><p>Multiple serial interfaces including two UARTs (16C550), two Fast I2C-bus (400 |
| kbit/s), SPI and SSP with buffering and variable data length capabilities.</p></li> |
| <li><p>Vectored Interrupt Controller (VIC) with configurable priorities and vector addresses.</p></li> |
| <li><p>Up to 45 of 5 V tolerant fast general purpose I/O pins in a tiny LQFP64 package.</p></li> |
| <li><p>Up to 21 external interrupt pins available.</p></li> |
| <li><p>60 MHz maximum CPU clock available from programmable on-chip PLL with settling |
| time of 100 us.</p></li> |
| <li><p>On-chip integrated oscillator operates with an external crystal from 1 MHz to 25 MHz.</p></li> |
| <li><p>Power saving modes include Idle and Power-down.</p></li> |
| <li><p>Individual enable/disable of peripheral functions as well as peripheral clock scaling |
| for additional power optimization.</p></li> |
| <li><p>Processor wake-up from Power-down mode via external interrupt or BOD.</p></li> |
| <li><p>Single power supply chip with POR and BOD circuits:</p></li> |
| <li><p>CPU operating voltage range of 3.0 V to 3.6 V (3.3 V +- 10 pct) with 5 V tolerant |
| I/O pads.</p></li> |
| </ul> |
| </section> |
| <section id="supported-boards"> |
| <h2>Supported Boards<a class="headerlink" href="#supported-boards" title="Permalink to this heading"></a></h2> |
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| <li class="toctree-l1"><a class="reference internal" href="boards/zp214xpa/index.html">zp214xpa</a></li> |
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