LPC2101 Datasheet, PDF (6/32 Pages) NXP Semiconductors – Single-chip 16-bit/32-bit microcontrollers; 8 kB/16 kB/32 kB flash with ISP/IAP, fast ports and 10-bit ADC

Philips Semiconductors
LPC2101/2102/2103
Single-chip 16-bit/32-bit microcontrollers
5.2 Pin description
Table 3: Pin description
Symbol
LQFP48
P0.0 to P0.31
PLCC44
Type
I/O
P0.0/TXD0/
13 ^[1]
18 ^[1]
I/O
MAT3.1
O
O
P0.1/RXD0/
14 ^[2]
19 ^[2]
I/O
MAT3.2
I
O
P0.2/SCL0/
18 ^[3]
22 ^[3]
I/O
CAP0.0
I/O
I
P0.3/SDA0/
21 ^[3]
25 ^[3]
I/O
MAT0.0
I/O
O
P0.4/SCK0/
22 ^[4]
26 ^[4]
I/O
CAP0.1
I/O
I
P0.5/MISO0/ 23 ^[4]
27 ^[4]
I/O
MAT0.1
I/O
O
P0.6/MOSI0/ 24 ^[4]
28 ^[4]
I/O
CAP0.2
I/O
I
P0.7/SSEL0/ 28 ^[2]
31 ^[2]
I/O
MAT2.0
I
O
P0.8/TXD1/
29 ^[4]
32 ^[4]
I/O
MAT2.1
O
O
P0.9/RXD1/
30 ^[2]
33 ^[2]
I/O
MAT2.2
I
O
Description
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 — General purpose Input/output digital pin (GPIO).
TXD0 — Transmitter output for UART0.
MAT3.1 — PWM output 1 for Timer 3.
P0.1 — General purpose Input/output digital pin (GPIO).
RXD0 — Receiver input for UART0.
MAT3.2 — PWM output 2 for Timer 3.
P0.2 — General purpose Input/output digital pin (GPIO).
SCL0 — I²C0 clock Input/output. Open-drain output (for
I²C-bus compliance).
CAP0.0 — Capture input for Timer 0, channel 0.
P0.3 — General purpose Input/output digital pin (GPIO).
SDA0 — I²C0 data input/output. Open-drain output (for
I²C-bus compliance).
MAT0.0 — PWM output for Timer 0, channel 0.
P0.4 — General purpose Input/output digital pin (GPIO).
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 — General purpose Input/output digital pin (GPIO).
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 — General purpose Input/output digital pin (GPIO).
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 — 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 — General purpose Input/output digital pin (GPIO).
TXD1 — Transmitter output for UART1.
MAT2.1 — PWM output for Timer 2, channel 1.
P0.9 — General purpose Input/output digital pin (GPIO).
RXD1 — Receiver input for UART1.
MAT2.2 — PWM output for Timer 2, channel 2.
LPC2101_02_03_1
Preliminary data sheet
Rev. 01 — 18 January 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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