LPC178X datasheet(53/120 Pages) NXP

53 / 120 page

LPC178X_7X

All information provided in this document is subject to legal disclaimers.

Preliminary data sheet

Rev. 4 — 1 May 2012

53 of 120

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

7.19.1 Features

• 10-bit DAC

• Resistor string architecture

• Buffered output

• Power-down mode

• Selectable output drive

• Dedicated conversion timer

• DMA support

7.20 UARTs

Remark: USART4 is not available on part LPC1774FBD144.

The LPC178x/7x contain five 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.

7.20.1 Features

• Maximum UART data bit rate of 7.5 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 capability.

• Fractional divider for baud rate control, auto baud capabilities and FIFO control

mechanism that enables software flow control implementation.

• Support for RS-485/9-bit/EIA-485 mode and multiprocessor addressing.

• All UARTs have DMA support for both transmit and receive.

• UART1 equipped with standard modem interface signals. This module also provides

full support for hardware flow control (auto-CTS/RTS).

• USART4 includes an IrDA mode to support infrared communication.

• USART4 supports synchronous mode and a smart card mode conforming to

ISO7816-3.

7.21 SSP serial I/O controller

The LPC178x/7x contain three 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 bus

LPC178X Datasheet(PDF) 53 Page - NXP Semiconductors

LPC178X Datasheet(HTML) 53 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL