The LPC185x/3x/2x/1x are Arm Cortex-M3 based microcontrollers for embeddedapplications. The Arm Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.
The LPC185x/3x/2x/1x operate at CPU frequencies of up to 180 MHz. The ArmCortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals. The ArmCortex-M3 CPU also includes an internal prefetch unit that supports speculativebranching.
The LPC185x/3x/2x/1x include up to 1 MB of flash and 136 kB of on-chip SRAM, 16 kB ofEEPROM memory, a quad SPI Flash Interface (SPIFI), a State Configurable Timer (SCT)subsystem, two High-speed USB controllers, Ethernet, LCD, an external memorycontroller, and multiple digital and analog peripherals.
Feature
- 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 andvoltage (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 USB,the 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 andoutputs 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 to52 MB per second
- 10/100T Ethernet MAC with RMII and MII interfaces and DMA support for highthroughput at low CPU load. Support for IEEE 1588 time stamping/advanced timestamping (IEEE 1588-2008 v2)
- One High-speed USB 2.0 Host/Device/OTG interface with DMA support andon-chip high-speed PHY (USB0)
- One High-speed USB 2.0 Host/Device interface with DMA support, on-chipfull-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; oneUART with IrDA interface; three USARTs support UART synchronous mode and asmart card interface conforming to ISO7816 specification
- Up to two C_CAN 2.0B controllers with one channel each. Use of C_CAN controllerexcludes operation of all other peripherals connected to the same bus bridge
- Two SSP controllers with FIFO and multi-protocol support. Both SSPs with DMAsupport
- One Fast-mode Plus I²C-bus interface with monitor mode and with open-drain I/Opins 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 to1024H 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 pixelmapping
- SD/MMC card interface
- Eight-channel General-Purpose DMA controller can access all memories on theAHB and all DMA-capable AHB slaves
- Up to 164 General-Purpose Input/Output (GPIO) pins with configurablepull-up/pull-down resistors
- GPIO registers are located on the AHB for fast access. GPIO ports have DMAsupport
- Up to eight GPIO pins can be selected from all GPIO pins as edge and levelsensitive interrupt sources
- Two GPIO group interrupt modules enable an interrupt based on a programmablepattern of input states of a group of GPIO pins
- Four general-purpose timer/counters with capture and match capabilities
- One motor control PWM for three-phase motor control
- One Quadrature Encoder Interface (QEI)
- Repetitive Interrupt timer (RI timer)
- Windowed watchdog timer
- Ultra-low power Real-Time Clock (RTC) on separate power domain with 256 bytesof battery powered backup registers
- Event recorder with three inputs to record event identification and event time; canbe battery powered
- Alarm timer; can be battery powered
- Analog peripherals
- One 10-bit DAC with DMA support and a data conversion rate of 400 kSamples/s
- Two 10-bit ADCs with DMA support and a data conversion rate of 400 kSamples/s.Up to eight analog channels total. Each analog input is connected to both ADCs
- Unique ID for each device
- Power
- Single 3.3 V (2.2 V to 3.6 V) power supply with on-chip internal voltage regulator forthe core supply and the RTC power domain
- RTC power domain can be powered separately by a 3 V battery supply
- Four reduced power modes: Sleep, Deep-sleep, Power-down, and Deeppower-down
- Processor wake-up from Sleep mode via wake-up interrupts from variousperipherals
- Wake-up from Deep-sleep, Power-down, and Deep power-down modes viaexternal interrupts and interrupts generated by battery powered blocks in the RTCpower domain
- Brownout detect with four separate thresholds for interrupt and forced reset
- Power-On Reset (POR)
- Available in LQFP208, LBGA256, LQFP144, and TFBGA100 packages
- Industrial
- Consumer
- White goods
- RFID readers
- e-Metering
