Datasheet

LPC2109_2119_2129_5 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 05 — 7 March 2007 6 of 35
NXP Semiconductors
LPC2109/2119/2129
Single-chip 16/32-bit microcontrollers
P0.15/RI1/EINT2 45 I RI1 — Ring Indicator input for UART1.
I EINT2 — External interrupt 2 input.
P0.16/EINT0/
MAT0.2/CAP0.2
46 I EINT0 — External interrupt 0 input.
O MAT0.2 — Match output for Timer 0, channel 2.
I CAP0.2 — Capture input for Timer 0, channel 2.
P0.17/CAP1.2/
SCK1/MAT1.2
47 I CAP1.2 — Capture input for Timer 1, channel 2.
I/O SCK1 — Serial Clock for SPI1. SPI clock output from master or input to slave.
O MAT1.2 — Match output for Timer 1, channel 2.
P0.18/CAP1.3/
MISO1/MAT1.3
53 I CAP1.3 — Capture input for Timer 1, channel 3.
I/O MISO1 — Master In Slave Out for SPI1. Data input to SPI master or data output
from SPI slave.
O MAT1.3 — Match output for Timer 1, channel 3.
P0.19/MAT1.2/
MOSI1/CAP1.2
54 O MAT1.2 — Match output for Timer 1, channel 2.
I/O MOSI1 — Master Out Slave In for SPI1. Data output from SPI master or data input
to SPI slave.
I CAP1.2 — Capture input for Timer 1, channel 2.
P0.20/MAT1.3/
SSEL1/EINT3
55 O MAT1.3 — Match output for Timer 1, channel 3.
I SSEL1 — Slave Select for SPI1. Selects the SPI interface as a slave.
I EINT3 — External interrupt 3 input.
P0.21/PWM5/
CAP1.3
1OPWM5 — Pulse Width Modulator output 5.
I CAP1.3 — Capture input for Timer 1, channel 3.
P0.22/CAP0.0/
MAT0.0
2ICAP0.0 — Capture input for Timer 0, channel 0.
O MAT0.0 — Match output for Timer 0, channel 0.
P0.23/RD2 3 I CAN2 receiver input (not available on LPC2109).
P0.24/TD2 5 O CAN2 transmitter output (not available on LPC2109).
P0.25/RD1 9 I CAN1 receiver input.
P0.27/AIN0/
CAP0.1/MAT0.1
11 I AIN0 — A/D converter, input 0. This analog input is always connected to its pin.
I CAP0.1 — Capture input for Timer 0, channel 1.
O MAT0.1 — Match output for Timer 0, channel 1.
P0.28/AIN1/
CAP0.2/MAT0.2
13 I AIN1 — A/D converter, input 1. This analog input is always connected to its pin.
I
CAP0.2 — Capture input for Timer 0, channel 2.
O MAT0.2 — Match output for Timer 0, channel 2.
P0.29/AIN2/
CAP0.3/MAT0.3
14 I AIN2 — A/D converter, input 2. This analog input is always connected to its pin.
I CAP0.3 — Capture input for Timer 0, Channel 3.
O MAT0.3 — Match output for Timer 0, channel 3.
P0.30/AIN3/
EINT3/CAP0.0
15 I AIN3 — A/D converter, input 3. This analog input is always connected to its pin.
I EINT3 — External interrupt 3 input.
I CAP0.0 — Capture input for Timer 0, channel 0.
P1.0 to P1.31 I/O Port 1 is a 32-bit bidirectional I/O port with individual direction controls for each bit.
The operation of port 1 pins depends upon the pin function selected via the Pin
Connect Block. Pins 0 through 15 of port 1 are not available.
Table 3. Pin description
…continued
Symbol Pin Type Description