LPC2124 datasheet(5/34 Pages) PHILIPS

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Philips Semiconductors

LPC2114/LPC2124

Single-chip 16/32-bit microcontrollers

Product data

Rev. 03 — 22 December 2004

5 of 34

9397 750 13145

5.2 Pin description

Table 3:

Pin description

Symbol

Type

Description

P0.0 to P0.31

I/O

Port 0: Port 0 is a 32-bit bi-directional I/O port with individual direction

controls for each bit. The operation of port 0 pins depends upon the pin

function selected via the Pin Connect Block. Pins 26 and 31 of port 0 are not

available.

P0.0

TxD0 — Transmitter output for UART0.

PWM1 — Pulse Width Modulator output 1.

P0.1

RxD0 — Receiver input for UART0.

PWM3 — Pulse Width Modulator output 3.

EINT0 — External interrupt 0 input

P0.2

I/O

SCL — I2C clock input/output. Open drain output (for I2C compliance).

CAP0.0 — Capture input for Timer 0, channel 0.

P0.3

I/O

SDA — I2C data input/output. Open drain output (for I2C compliance).

MAT0.0 — Match output for Timer 0, channel 0.

EINT1 — External interrupt 1 input.

P0.4

I/O

SCK0 — Serial clock for SPI0. SPI clock output from master or input to slave.

CAP0.1 — Capture input for Timer 0, channel 1.

P0.5

I/O

MISO0 — Master In Slave OUT for SPI0. Data input to SPI master or data

output from SPI slave.

MAT0.1 — Match output for Timer 0, channel 1.

P0.6

I/O

MOSI0 — Master Out Slave In for SPI0. Data output from SPI master or data

input to SPI slave.

CAP0.2 — Capture input for Timer 0, channel 2.

P0.7

SSEL0 — Slave Select for SPI0. Selects the SPI interface as a slave.

PWM2 — Pulse Width Modulator output 2.

EINT2 — External interrupt 2 input.

P0.8

TxD1 — Transmitter output for UART1.

PWM4 — Pulse Width Modulator output 4.

P0.9

RxD1 — Receiver input for UART1.

PWM6 — Pulse Width Modulator output 6.

EINT3 — External interrupt 3 input.

P0.10

RTS1 — Request to Send output for UART1.

CAP1.0 — Capture input for Timer 1, channel 0.

P0.11

CTS1 — Clear to Send input for UART1.

CAP1.1 — Capture input for Timer 1, channel 1.

P0.12

DSR1 — Data Set Ready input for UART1.

MAT1.0 — Match output for Timer 1, channel 0.

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