LPC81XM datasheet(11/78 Pages) NXP

11 / 78 page

LPC81XM

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Product data sheet

Rev. 4.6 — 4 April 2018

11 of 78

NXP Semiconductors

LPC81xM

32-bit ARM Cortex-M0+ microcontroller

U0_SCLK

I/O

Serial clock input/output for USART0 in synchronous mode.

U1_TXD

Transmitter output for USART1.

U1_RXD

Receiver input for USART1.

U1_RTS

Request To Send output for USART1.

U1_CTS

Clear To Send input for USART1.

U1_SCLK

I/O

Serial clock input/output for USART1 in synchronous mode.

U2_TXD

Transmitter output for USART2.

U2_RXD

Receiver input for USART2.

U2_RTS

Request To Send output for USART2.

U2_CTS

Clear To Send input for USART2.

U2_SCLK

I/O

Serial clock input/output for USART2 in synchronous mode.

SPI0_SCK

I/O

Serial clock for SPI0.

SPI0_MOSI

I/O

Master Out Slave In for SPI0.

SPI0_MISO

I/O

Master In Slave Out for SPI0.

SPI0_SSEL

I/O

Slave select for SPI0.

SPI1_SCK

I/O

Serial clock for SPI1.

SPI1_MOSI

I/O

Master Out Slave In for SPI1.

SPI1_MISO

I/O

Master In Slave Out for SPI1.

SPI1_SSEL

I/O

Slave select for SPI1.

CTIN_0

SCT input 0.

CTIN_1

SCT input 1.

CTIN_2

SCT input 2.

CTIN_3

SCT input 3.

CTOUT_0

SCT output 0.

CTOUT_1

SCT output 1.

CTOUT_2

SCT output 2.

CTOUT_3

SCT output 3.

I2C0_SCL

I/O

I2C-bus clock input/output (open-drain if assigned to pin PIO0_10).

High-current sink only if assigned to PIO0_10 and if I2C Fast-mode

Plus is selected in the I/O configuration register.

I2C0_SDA

I/O

I2C-bus data input/output (open-drain if assigned to pin PIO0_11).

High-current sink only if assigned to pin PIO0_11 and if I2C

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

ACMP_O

Analog comparator digital output.

CLKOUT

Clock output.

GPIO_INT_BMAT O

Output of the pattern match engine.

Table 5.

Movable functions (assign to pins PIO0_0 to PIO_17 through switch matrix)

Function name

Type

Description

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