Datasheet

LPC2194_4 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet Rev. 04 — 11 September 2006 6 of 36
Philips Semiconductors
LPC2194
Single-chip 16/32-bit microcontroller
P0.14/DCD1/
EINT1
41 I DCD1 — Data Carrier Detect input for UART1.
I EINT1 — External interrupt 1 input.
Note: LOW on this pin while RESET is LOW forces on-chip bootloader to take
control of the part after reset.
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/
RD3/CAP1.3
1OPWM5 — Pulse Width Modulator output 5.
I RD3 — CAN3 receiver input.
I CAP1.3 — Capture input for Timer 1, channel 3.
P0.22/TD3/
CAP0.0/MAT0.0
2OTD3 — CAN3 transmitter output.
I CAP0.0 — 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.
P0.24/TD2 5 O CAN2 transmitter output.
P0.25/RD1 9 O 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.
Table 2. Pin description
…continued
Symbol Pin Type Description