Philips Semiconductors

LPC2119/LPC2129

Single-chip 16/32-bit microcontrollers

Product data

Rev. 03 — 22 December 2004

17 of 34

9397 750 13146

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

6.9 Pin function select register 2 (PINSEL2 - 0xE002C014)

The PINSEL2 register controls the functions of the pins as per the settings listed in

Table 8. The direction control bit in the IODIR register is effective only when the GPIO

function is selected for a pin. For other functions direction is controlled automatically.

Settings other than those shown in the table are reserved, and should not be used.

6.10 General purpose parallel I/O

Device pins that are not connected to a specific peripheral function are controlled by

the GPIO registers. Pins may be dynamically configured as inputs or outputs.

Separate registers allow setting or clearing any number of outputs simultaneously.

The value of the output register may be read back, as well as the current state of the

port pins.

6.10.1

Features

6.11 10-bit A/D converter

The LPC2119/LPC2129 each contain single 10-bit successive approximation analog

to digital converter with four multiplexed channels.

6.11.1

Features

31:30

P0.31

0

0

Reserved

0

0

1

Reserved

1

0

Reserved

1

1

Reserved

Table 7:

PINSEL1

Pin Name

Value

Function

Value after

Reset

Table 8:

Pin function select register 2 (PINSEL2 - 0xE002C014)

PINSEL2 bits

Description

Reset value

1:0

Reserved

-

2

When 0, pins P1.31:26 are GPIO pins. When 1,

P1.31:26 are used as Debug port.

0

3

When 0, pins P1.25:16 are used as GPIO pins. When

1, P1.25:16 are used as Trace port.

0

31:4

31:30

Reserved

-