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Philips Semiconductors
ARM-based Microcontroller
PIN DESCRIPTION FOR LPC2119/2129/2194
Pin description for LPC2119/2129/2194 and a brief of corresponding functions are shown in the following table.
Table 55: Pin description for LPC2119/2129/2194
Pin
LQFP64
Type
Name
Pin #
P0.0
I/O
to
P0.31
O
19
O
I
21
O
I
I/O
22
I
I/O
26
O
I/O
27
I
I/O
29
O
I/O
30
I
I
31
O
I
O
33
O
I
34
O
I
Pin Configuration
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.
Note: All Port 0 pins excluding those that can be used as A/D inputs (P0.27, P0.28, P0.29 and
P0.30) are functionally 5V tolerant. If the A/D converter is not used at all, pins associated with A/
D inputs can be used as 5V tolerant digital IO pins. See "A/D Converter" chapter for A/D input pin
voltage considerations.
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.
2
P0.2
SCL
I
CAP0.0
Capture input for TIMER0, channel 0.
2
P0.3
SDA
I
MAT0.0
Match output for TIMER0, channel 0.
EINT1
External interrupt 1 input.
P0.4
SCK0
Serial Clock for SPI0. SPI clock output from master or input to slave.
CAP0.1
Capture input for TIMER0, channel 1.
P0.5
MISO0
Master In Slave Out for SPI0. Data input to SPI master or data output
from SPI slave.
MAT0.1
Match output for TIMER0, channel 1.
P0.6
MOSI0
Master Out Slave In for SPI0. Data output from SPI master or data
input to SPI slave.
CAP0.2
Capture input for TIMER0, 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.
LPC2119/2129/2194/2292/2294
Description
C clock input/output. Open drain output (for I
C data input/output. Open drain output (for I
111
Preliminary User Manual
2
C compliance).
2
C compliance).
May 03, 2004
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