LPC2103 datasheet(7/37 Pages) NXP

7 / 37 page

LPC2101_02_03_4

Product data sheet

Rev. 04 — 2 June 2009

7 of 37

NXP Semiconductors

LPC2101/02/03

Single-chip 16-bit/32-bit microcontrollers

P0.11/CTS1/

CAP1.1/AD0.4

36[3]

I/O

P0.11 — General purpose input/output digital pin.

CTS1 — Clear to Send input for UART1.

CAP1.1 — Capture input for Timer 1, channel 1.

AD0.4 — ADC 0, input 4.

P0.12/DSR1/

MAT1.0/AD0.5

37[3]

I/O

P0.12 — General purpose input/output digital pin.

DSR1 — Data Set Ready input for UART1.

MAT1.0 — PWM output for Timer 1, channel 0.

AD0.5 — ADC 0, input 5.

P0.13/DTR1/

MAT1.1

41[1]

I/O

P0.13 — General purpose input/output digital pin.

DTR1 — Data Terminal Ready output for UART1.

MAT1.1 — PWM output for Timer 1, channel 1.

P0.14/DCD1/

SCK1/EINT1

44[4][5]

I/O

P0.14 — General purpose input/output digital pin.

DCD1 — Data Carrier Detect input for UART1.

I/O

SCK1 — Serial Clock for SPI1. SPI clock output from master or input to slave.

EINT1 — External interrupt 1 input.

P0.15/RI1/

EINT2

45[4]

I/O

P0.15 — General purpose input/output digital pin.

RI1 — Ring Indicator input for UART1.

EINT2 — External interrupt 2 input.

P0.16/EINT0/

MAT0.2

46[4]

I/O

P0.16 — General purpose input/output digital pin.

EINT0 — External interrupt 0 input.

MAT0.2 — PWM output for Timer 0, channel 2.

P0.17/CAP1.2/

SCL1

47[6]

I/O

P0.17 — General purpose input/output digital pin. The output is not

open-drain.

CAP1.2 — Capture input for Timer 1, channel 2.

I/O

SCL1 — I2C1 clock Input/output. This pin is an open-drain output if I2C1

function is selected in the pin connect block.

P0.18/CAP1.3/

SDA1

48[6]

I/O

P0.18 — General purpose input/output digital pin. The output is not

open-drain.

CAP1.3 — Capture input for Timer 1, channel 3.

I/O

SDA1 — I2C1 data Input/output. This pin is an open-drain output if I2C1

function is selected in the pin connect block.

P0.19/MAT1.2/

MISO1

1[1]

I/O

P0.19 — General purpose input/output digital pin.

MAT1.2 — PWM output for Timer 1, channel 2.

I/O

MISO1 — Master In Slave Out for SSP. Data input to SSP master or data

output from SSP slave.

P0.20/MAT1.3/

MOSI1

2[1]

I/O

P0.20 — General purpose input/output digital pin.

MAT1.3 — PWM output for Timer 1, channel 3.

I/O

MOSI1 — Master Out Slave for SSP. Data output from SSP master or data

input to SSP slave.

P0.21/SSEL1/

MAT3.0

3[1]

I/O

P0.21 — General purpose input/output digital pin.

SSEL1 — Slave Select for SPI1. Selects the SPI interface as a slave.

MAT3.0 — PWM output for Timer 3, channel 0.

Table 3.

Pin description …continued

Symbol

Type

Description

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