LPC11CX2 datasheet(13/62 Pages) NXP

13 / 62 page

LPC11CX2_CX4

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Product data sheet

Rev. 3 — 27 June 2011

13 of 62

NXP Semiconductors

LPC11Cx2/Cx4

32-bit ARM Cortex-M0 microcontroller

PIO1_11/AD7

42[5]

I/O

I; PU

PIO1_11 — General purpose digital input/output pin.

I-

AD7 — A/D converter, input 7.

PIO2_0 to PIO2_11

Port 2 — Port 2 is a 12-bit I/O port with individual direction and

function controls for each bit. The operation of port 2 pins depends

on the function selected through the IOCONFIG register block.

PIO2_0/DTR/

SSEL1

2[3]

I/O

I; PU

PIO2_0 — General purpose digital input/output pin.

I/O

DTR — Data Terminal Ready output for UART.

I/O

SSEL1 — Slave Select for SPI1.

PIO2_1/DSR/SCK1

13[3]

I/O

I; PU

PIO2_1 — General purpose digital input/output pin.

I-

DSR — Data Set Ready input for UART.

I/O

SCK1 — Serial clock for SPI1.

PIO2_2/DCD/

MISO1

26[3]

I/O

I; PU

PIO2_2 — General purpose digital input/output pin.

I-

DCD — Data Carrier Detect input for UART.

I/O

MISO1 — Master In Slave Out for SPI1.

PIO2_3/RI/MOSI1

38[3]

I/O

I; PU

PIO2_3 — General purpose digital input/output pin.

I-

RI — Ring Indicator input for UART.

I/O

MOSI1 — Master Out Slave In for SPI1.

PIO2_6

1[3]

I/O

I; PU

PIO2_6 — General purpose digital input/output pin.

PIO2_7

11[3]

I/O

I; PU

PIO2_7 — General purpose digital input/output pin.

PIO2_8

12[3]

I/O

I; PU

PIO2_8 — General purpose digital input/output pin.

PIO2_10

25[3]

I/O

I; PU

PIO2_10 — General purpose digital input/output pin.

PIO2_11/SCK0

31[3]

I/O

I; PU

PIO2_11 — General purpose digital input/output pin.

I/O

SCK0 — Serial clock for SPI0.

PIO3_0 to PIO3_3

Port 3 — Port 3 is a 12-bit I/O port with individual direction and

function controls for each bit. The operation of port 3 pins depends

on the function selected through the IOCONFIG register block. Pins

PIO3_4 to PIO3_11 are not available.

PIO3_0/DTR

36[3]

I/O

I; PU

PIO3_0 — General purpose digital input/output pin.

O-

DTR — Data Terminal Ready output for UART.

PIO3_1/DSR

37[3]

I/O

I; PU

PIO3_1 — General purpose digital input/output pin.

I-

DSR — Data Set Ready input for UART.

PIO3_2/DCD

43[3]

I/O

I; PU

PIO3_2 — General purpose digital input/output pin.

DCD — Data Carrier Detect input for UART.

PIO3_3/RI

48[3]

I/O

I; PU

PIO3_3 — General purpose digital input/output pin.

I-

RI — Ring Indicator input for UART.

CANL

I/O

LOW-level CAN bus line.

CANH

I/O

HIGH-level CAN bus line.

STB

Silent mode control input for CAN transceiver (LOW = Normal mode,

HIGH = silent mode).

VDD_CAN

Supply voltage for I/O level of CAN transceiver.

VCC

Supply voltage for CAN transceiver.

Table 4.

LPC11C22/C24 pin description table

Symbol

Start

logic

inputs

Type

Reset

state

[1]

Description

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