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General description

The LPC1850/30/20/10 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 LPC1850/30/20/10 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 LPC1850/30/20/10 include up to 200 kB of on-chip SRAM, 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.

Features and benefits

■ Processor core

◆ ARM Cortex-M3 processor, running at 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

◆ 200 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.

◆ 32-bit 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 1 accuracy over temperature and

voltage.

◆ Ultra-low power RTC crystal oscillator.

◆ Three PLLs allow CPU operation up to the maximum CPU rate without the need for

a high-frequency crystal. The second PLL is dedicated to 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 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. Use of C_CAN controller

excludes operation of all other peripherals connected to the same bus bridge See

Figure 1 and Ref. 1.

◆ 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 to

1 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. (Continue ...)