LPC2109 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
LPC2109
NXP Semiconductors.
LPC2109 Datasheet PDF : 44 Pages
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NXP Semiconductors
LPC2109/2119/2129
Single-chip 16/32-bit microcontrollers
5.2 Pin description
Table 3. Pin description
Symbol
Pin
P0[0] to P0[31]
P0[0]/TXD0/
19
PWM1
P0[1]/RXD0/
21
PWM3/EINT0
P0[2]/SCL/
22
CAP0[0]
P0[3]/SDA/
26
MAT0[0]/EINT1
P0[4]/SCK0/
27
CAP0[1]
P0[5]/MISO0/
29
MAT0[1]
P0[6]/MOSI0/
30
CAP0[2]
P0[7]/SSEL0/
31
PWM2/EINT2
P0[8]/TXD1/
33
PWM4
P0[9]/RXD1/
34
PWM6/EINT3
P0[10]/RTS1/
35
CAP1[0]
P0[11]/CTS1/
37
CAP1[1]
P0[12]/DSR1/
38
MAT1[0]
P0[13]/DTR1/
39
MAT1[1]
P0[14]/DCD1/
41
EINT1
Type Description
I/O Port 0 is a 32-bit bidirectional 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.
O TXD0 — Transmitter output for UART0.
O PWM1 — Pulse Width Modulator output 1.
I
RXD0 — Receiver input for UART0.
O PWM3 — Pulse Width Modulator output 3.
I
EINT0 — External interrupt 0 input
I/O SCL — I2C-bus clock input/output. Open-drain output (for I2C-bus compliance).
I
CAP0[0] — Capture input for Timer 0, channel 0.
I/O SDA — I2C-bus data input/output. Open-drain output (for I2C-bus compliance).
O MAT0[0] — Match output for Timer 0, channel 0.
I
EINT1 — External interrupt 1 input.
I/O SCK0 — Serial clock for SPI0. SPI clock output from master or input to slave.
I
CAP0[1] — Capture input for Timer 0, channel 1.
I/O MISO0 — Master In Slave OUT for SPI0. Data input to SPI master or data output
from SPI slave.
O MAT0[1] — Match output for Timer 0, channel 1.
I/O MOSI0 — Master Out Slave In for SPI0. Data output from SPI master or data input
to SPI slave.
I
CAP0[2] — Capture input for Timer 0, channel 2.
I
SSEL0 — Slave Select for SPI0. Selects the SPI interface as a slave.
O PWM2 — Pulse Width Modulator output 2.
I
EINT2 — External interrupt 2 input.
O TXD1 — Transmitter output for UART1.
O PWM4 — Pulse Width Modulator output 4.
I
RXD1 — Receiver input for UART1.
O PWM6 — Pulse Width Modulator output 6.
I
EINT3 — External interrupt 3 input.
O RTS1 — Request to Send output for UART1.
I
CAP1[0] — Capture input for Timer 1, channel 0.
I
CTS1 — Clear to Send input for UART1.
I
CAP1[1] — Capture input for Timer 1, channel 1.
I
DSR1 — Data Set Ready input for UART1.
O MAT1[0] — Match output for Timer 1, channel 0.
O DTR1 — Data Terminal Ready output for UART1.
O MAT1[1] — Match output for Timer 1, channel 1.
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.
LPC2109_2119_2129_6
Product data sheet
Rev. 06 — 10 December 2007
© NXP B.V. 2007. All rights reserved.
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