LPC1111 datasheet(12/64 Pages) NXP

12 / 64 page

LPC1111_12_13_14

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Product data sheet

Rev. 5 — 22 June 2011

12 of 64

NXP Semiconductors

LPC1111/12/13/14

32-bit ARM Cortex-M0 microcontroller

Table 4.

LPC1111/12/13/14 pin description table (HVQFN33 package)

Symbol

Start

logic

input

Type

Reset

state

[1]

Description

PIO0_0 to PIO0_11

Port 0 — Port 0 is a 12-bit I/O port with individual direction and

function controls for each bit. The operation of port 0 pins depends on

the function selected through the IOCONFIG register block.

RESET/PIO0_0

2[2]

yes

I;PU

RESET — External reset input with 20 ns glitch filter. A LOW-going

pulse as short as 50 ns on this pin resets the device, causing I/O ports

and peripherals to take on their default states and processor execution

to begin at address 0.

I/O

PIO0_0 — General purpose digital input/output pin with 10 ns glitch

filter.

PIO0_1/CLKOUT/

CT32B0_MAT2

3[3]

yes

I/O

I;PU

PIO0_1 — General purpose digital input/output pin. A LOW level on

this pin during reset starts the ISP command handler.

O-

CLKOUT — Clock out pin.

O-

CT32B0_MAT2 — Match output 2 for 32-bit timer 0.

PIO0_2/SSEL0/

CT16B0_CAP0

8[3]

yes

I/O

I;PU

PIO0_2 — General purpose digital input/output pin.

I/O

SSEL0 — Slave select for SPI0.

I-

CT16B0_CAP0 — Capture input 0 for 16-bit timer 0.

PIO0_3

9[3]

yes

I/O

I;PU

PIO0_3 — General purpose digital input/output pin.

PIO0_4/SCL

10[4]

yes

I/O

I;PU

PIO0_4 — General purpose digital input/output pin (open-drain).

I/O

SCL — I2C-bus, open-drain clock input/output. High-current sink only

if I2C Fast-mode Plus is selected in the I/O configuration register.

PIO0_5/SDA

11[4]

yes

I/O

I;PU

PIO0_5 — General purpose digital input/output pin (open-drain).

I/O

SDA — I2C-bus, open-drain data input/output. High-current sink only if

I2C Fast-mode Plus is selected in the I/O configuration register.

PIO0_6/SCK0

15[3]

yes

I/O

I;PU

PIO0_6 — General purpose digital input/output pin.

I/O

SCK0 — Serial clock for SPI0.

PIO0_7/CTS

16[3]

yes

I/O

I;PU

PIO0_7 — General purpose digital input/output pin (high-current

output driver).

I-

CTS — Clear To Send input for UART.

PIO0_8/MISO0/

CT16B0_MAT0

17[3]

yes

I/O

I;PU

PIO0_8 — General purpose digital input/output pin.

I/O

MISO0 — Master In Slave Out for SPI0.

O-

CT16B0_MAT0 — Match output 0 for 16-bit timer 0.

PIO0_9/MOSI0/

CT16B0_MAT1

18[3]

yes

I/O

I;PU

PIO0_9 — General purpose digital input/output pin.

I/O

MOSI0 — Master Out Slave In for SPI0.

O-

CT16B0_MAT1 — Match output 1 for 16-bit timer 0.

SWCLK/PIO0_10/

SCK0/

CT16B0_MAT2

19[3]

yes

I;PU

SWCLK — Serial wire clock.

I/O

PIO0_10 — General purpose digital input/output pin.

I/O

SCK0 — Serial clock for SPI0.

O-

CT16B0_MAT2 — Match output 2 for 16-bit timer 0.

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