LPC2124FBD64SLASH01 datasheet(15/40 Pages) NXP

15 / 40 page

LPC2114_2124_6

Product data sheet

Rev. 06 — 10 December 2007

15 of 40

NXP Semiconductors

LPC2114/2124

Single-chip 16/32-bit microcontrollers

6.8.1 Features

• Measurement range of 0 V to 3 V.

• Capable of performing more than 400000 10-bit samples per second.

• Burst conversion mode for single or multiple inputs.

• Optional conversion on transition on input pin or Timer Match signal.

• Every analog input has a dedicated result register to reduce interrupt overhead.

• Every analog input can generate an interrupt once the conversion is completed.

6.8.2 ADC features available in LPC2114/2124/01 only

• Every analog input has a dedicated result register to reduce interrupt overhead.

• Every analog input can generate an interrupt once the conversion is completed.

• The ADC pads are 5 V tolerant when conﬁgured for digital I/O function(s).

6.9 UARTs

The LPC2114/2124 each contain two UARTs. In addition to standard transmit and receive

data lines, the UART1 also provides a full modem control handshake interface.

6.9.1 Features

• 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.

• Transmission FIFO control enables implementation of software (XON/XOFF) ﬂow

control on both UARTs.

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

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

6.9.2 UART features available in LPC2114/2124/01 only

Compared to previous LPC2000 microcontrollers, UARTs in LPC2114/2124/01 introduce

a fractional baud rate generator for both UARTs, enabling these microcontrollers to

achieve standard baud rates such as 115200 Bd with any crystal frequency above 2 MHz.

In addition, auto-CTS/RTS ﬂow-control functions are fully implemented in hardware.

• Fractional baud rate generator enables standard baud rates such as 115200 Bd to be

achieved with any crystal frequency above 2 MHz.

• Auto-bauding.

• Auto-CTS/RTS ﬂow-control fully implemented in hardware.

6.10 I2C-bus serial I/O controller

The I2C-bus is a bidirectional bus for inter-IC control using only two wires: a serial clock

line (SCL), and a serial data line (SDA). Each device is recognized by a unique address

and can operate as either a receiver-only device (e.g. an LCD driver or a transmitter with

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