Описание
The LPC185x/3x/2x/1x are ARM Cortex-M3 based microcontrollers for embedded applications. The ARM Cortex-M3 is a next generation core that offers system enhancements such as low power consumption, enhanced debug features, and a high level of support block integration. The LPC185x/3x/2x/1x operate at CPU frequencies of up to 180 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. The LPC185x/3x/2x/1x include up to 1 MB of flash and 136 kB of on-chip SRAM, 16 kB of EEPROM memory, a quad SPI Flash Interface (SPIFI), a State Configurable Timer (SCT) subsystem, two High-speed USB controllers, Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals.
- Processor core
- ARM Cortex-M3 processor, running at CPU frequencies of up to 180 MHz
- ARM Cortex-M3 built-in Memory Protection Unit (MPU) supporting eight regions
- ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC)
- Non-maskable Interrupt (NMI) input
- JTAG and Serial Wire Debug, serial trace, eight breakpoints, and four watch points
- Enhanced Trace Module (ETM) and Enhanced Trace Buffer (ETB) support
- System tick timer
- On-chip memory
- Up to 1 MB on-chip dual bank flash memory with flash accelerator
- 16 kB on-chip EEPROM data memory
- 136 kB SRAM for code and data use
- Multiple SRAM blocks with separate bus access
- 64 kB ROM containing boot code and on-chip software drivers
- 64 bit of One-Time Programmable (OTP) memory for general-purpose use
- Clock generation unit
- Crystal oscillator with an operating range of 1 MHz to 25 MHz
- 12 MHz internal RC oscillator trimmed to 2 % accuracy over temperature and voltage (1 % accuracy for Tamb = 0 °C to 85 °C)
- Ultra-low power RTC crystal oscillator
- Three PLLs allow CPU operation up to the maximum CPU rate without the need fora high-frequency crystal. The second PLL can be used with the High-speed third PLL can be used as audio PLL
- Clock output
- Configurable digital peripherals
- State Configurable Timer (SCT) subsystem on AHB
- Global Input Multiplexer Array (GIMA) allows to cross-connect multiple inputs and outputs to event driven peripherals like timers, SCT, and ADC0/1
- Serial interfaces
- Quad SPI Flash Interface (SPIFI) with 1-, 2-, or 4-bit data at rates of up to 52 MB per second
- 10/100T Ethernet MAC with RMII and MII interfaces and DMA support for high throughput at low CPU load. Support for IEEE 1588 time stamping/advanced time stamping (IEEE 1588-2008 v2)
- One High-speed USB 2.0 Host/Device/OTG interface with DMA support and on-chip high-speed PHY (USB0)
- One High-speed USB 2.0 Host/Device interface with DMA support, on-chip full-speed PHY and ULPI interface to an external high-speed PHY (USB1)
- USB interface electrical test software included in ROM USB stack
- Four 550 UARTs with DMA support: one UART with full modem interface; one UART with IrDA interface; three USARTs support UART synchronous mode and a smart card interface conforming to ISO7816 specification
- Up to two C_CAN 2.0B controllers with one channel each.
- Two SSP controllers with FIFO and multi-protocol support. Both SSPs with DMA support
- One Fast-mode Plus I²C-bus interface with monitor mode and with open-drain I/O pins conforming to the full I²C-bus specification. Supports data rates of up to1 Mbit/s
- One standard I²C-bus interface with monitor mode and standard I/O pins
- Two I²S interfaces with DMA support, each with one input and one output
- Digital peripherals
- External Memory Controller (EMC) supporting external SRAM, ROM, NOR flash, and SDRAM devices
- LCD controller with DMA support and a programmable display resolution of up to 1024H x 768V. Supports monochrome and color STN panels and TFT color panels; supports 1/2/4/8 bpp Color Look-Up Table (CLUT) and 16/24-bit direct pixel mapping
- SD/MMC card interface
- Eight-channel General-Purpose DMA controller can access all memories on the AHB and all DMA-capable AHB slaves
- Up to 164 General-Purpose Input/Output (GPIO) pins with configurable pull-up/pull-down resistors
