LPC2103 datasheet(6/32 Pages) PHILIPS

6 / 32 page

LPC2101_02_03_1

Preliminary data sheet

Rev. 01 — 18 January 2006

6 of 32

Philips Semiconductors

LPC2101/2102/2103

Single-chip 16-bit/32-bit microcontrollers

5.2 Pin description

Table 3:

Pin description

Symbol

LQFP48

PLCC44

Type

Description

P0.0 to P0.31

I/O

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

controls for each bit. A total of 31 pins of the Port 0 can be

used as general purpose bidirectional digital I/Os while P0.31

is an output only pin. The operation of port 0 pins depends

upon the pin function selected via the pin connect block.

P0.0/TXD0/

MAT3.1

13 [1]

18 [1]

I/O

P0.0 — General purpose Input/output digital pin (GPIO).

TXD0 — Transmitter output for UART0.

MAT3.1 — PWM output 1 for Timer 3.

P0.1/RXD0/

MAT3.2

14 [2]

19 [2]

I/O

P0.1 — General purpose Input/output digital pin (GPIO).

RXD0 — Receiver input for UART0.

MAT3.2 — PWM output 2 for Timer 3.

P0.2/SCL0/

CAP0.0

18 [3]

22 [3]

I/O

P0.2 — General purpose Input/output digital pin (GPIO).

I/O

SCL0 — I2C0 clock Input/output. Open-drain output (for

I2C-bus compliance).

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

P0.3/SDA0/

MAT0.0

21 [3]

25 [3]

I/O

P0.3 — General purpose Input/output digital pin (GPIO).

I/O

SDA0 — I2C0 data input/output. Open-drain output (for

I2C-bus compliance).

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

P0.4/SCK0/

CAP0.1

22 [4]

26 [4]

I/O

P0.4 — General purpose Input/output digital pin (GPIO).

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/MISO0/

MAT0.1

23 [4]

27 [4]

I/O

P0.5 — General purpose Input/output digital pin (GPIO).

I/O

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

master or data output from SPI slave.

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

P0.6/MOSI0/

CAP0.2

24 [4]

28 [4]

I/O

P0.6 — General purpose Input/output digital pin (GPIO).

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/

MAT2.0

28 [2]

31 [2]

I/O

P0.7 — General purpose Input/output digital pin (GPIO).

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

a slave.

MAT2.0 — PWM output for Timer 2, channel 0.

P0.8/TXD1/

MAT2.1

29 [4]

32 [4]

I/O

P0.8 — General purpose Input/output digital pin (GPIO).

TXD1 — Transmitter output for UART1.

MAT2.1 — PWM output for Timer 2, channel 1.

P0.9/RXD1/

MAT2.2

30 [2]

33 [2]

I/O

P0.9 — General purpose Input/output digital pin (GPIO).

RXD1 — Receiver input for UART1.

MAT2.2 — PWM output for Timer 2, channel 2.

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