Manualshelf

Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LBGA 256 (17x17) 32-Bit 180 MHz I/O number 164
71727374757677787980
LPC185X_3X_2X_1X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4.1 — 6 May 2014 74 of 148
NXP Semiconductors
LPC185x/3x/2x/1x
32-bit ARM Cortex-M3 microcontroller
7.16.1.1 Features
• Maximum UART data bit rate of 8 MBit/s.
• 16 B Receive and Transmit FIFOs.
• Register locations conform to 16C550 industry standard.
• Receiver FIFO trigger points at 1 B, 4 B, 8 B, and 14 B.
• Built-in fractional baud rate generator covering wide range of baud rates without a
need for external crystals of particular values.
• Auto baud capabilities and FIFO control mechanism that enables software flow
control implementation.
• Equipped with standard modem interface signals. This module also provides full
support for hardware flow control (auto-CTS/RTS).
• Support for RS-485/9-bit/EIA-485 mode (UART1).
• DMA support.
7.16.2 USART
Remark: The LPC185x/3x/2x/1x contain three USARTs. In addition to standard transmit
and receive data lines, the USARTs support a synchronous mode and a smart card mode.
The USARTs include a fractional baud rate generator. Standard baud rates such as
115200 Bd can be achieved with any crystal frequency above 2 MHz.
7.16.2.1 Features
• Maximum UART data bit rate of 8 MBit/s.
• 16 B Receive and Transmit FIFOs.
• Register locations conform to 16C550 industry standard.
• Receiver FIFO trigger points at 1 B, 4 B, 8 B, and 14 B.
• Built-in fractional baud rate generator covering wide range of baud rates without a
need for external crystals of particular values.
• Auto baud capabilities and FIFO control mechanism that enables software flow
control implementation.
• Support for RS-485/9-bit/EIA-485 mode.
• USART3 includes an IrDA mode to support infrared communication.
• All USARTs have DMA support.
• Support for synchronous mode at a data bit rate of up to 8 Mbit/s.
• Smart card mode conforming to ISO7816 specification
7.16.3 SSP serial I/O controller
Remark: The LPC185x/3x/2x/1x contain two SSP controllers.
The SSP controller can operate on a SPI, 4-wire SSI, or Microwire bus. It can interact with
multiple masters and slaves on the bus. Only a single master and a single slave can
communicate on the bus during a given data transfer. The SSP supports full-duplex