LPC1759FBD80 NXP Semiconductors, LPC1759FBD80 Datasheet - Page 22
Manufacturer Part Number
The LPC1759 is a Cortex-M3 microcontroller for embedded applications featuring a high level of integration and low power consumption at frequencies of 120 MHz
Product data sheet
7.17 SPI serial I/O controller
7.18 SSP serial I/O controller
The LPC1759/58/56/54/52/51 each contain four UARTs. In addition to standard transmit
and receive data lines, UART1 also provides a full modem control handshake interface
and support for RS-485/9-bit mode allowing both software address detection and
automatic address detection using 9-bit mode.
The UARTs include a fractional baud rate generator. Standard baud rates such as
115200 Bd can be achieved with any crystal frequency above 2 MHz.
The LPC1759/58/56/54/52/51 contain one SPI controller. SPI is a full duplex serial
interface designed to handle multiple masters and slaves connected to a given bus. Only
a single master and a single slave can communicate on the interface during a given data
transfer. During a data transfer the master always sends 8 bits to 16 bits of data to the
slave, and the slave always sends 8 bits to 16 bits of data to the master.
The LPC1759/58/56/54/52/51 contain two SSP controllers. The SSP controller is capable
of operation 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
Maximum UART data bit rate of 6.25 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.
Fractional divider for baud rate control, auto baud capabilities and FIFO control
mechanism that enables software flow control implementation.
UART1 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).
UART3 includes an IrDA mode to support infrared communication.
All UARTs have DMA support.
Maximum SPI data bit rate of 12.5 Mbit/s
Compliant with SPI specification
Synchronous, serial, full duplex communication
Combined SPI master and slave
Maximum data bit rate of one eighth of the input clock rate
8 bits to 16 bits per transfer
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 29 March 2011
32-bit ARM Cortex-M3 microcontroller
© NXP B.V. 2011. All rights reserved.
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