LPC1786 datasheet(14/117 Pages) NXP

14 / 117 page

LPC178X_7X

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Objective data sheet

Rev. 2 — 27 May 2011

14 of 117

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

P0[18]

124

K15

J13

[3]

I/O

P0[18] — General purpose digital input/output pin.

U1_DCD — Data Carrier Detect input for UART1.

I/O

SSP0_MOSI — Master Out Slave In for SSP0.

P0[19]

122

L17

J10

[3]

I/O

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

U1_DSR — Data Set Ready input for UART1.

SD_CLK — Clock output line for SD card interface.

I/O

I2C1_SDA — I2C1 data input/output (this pin does not use a

specialized I2C pad).

R — Function reserved.

LCD_VD[13] — LCD data.

P0[20]

120

M17

K14

[3]

I/O

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

U1_DTR — Data Terminal Ready output for UART1. Can also

be configured to be an RS-485/EIA-485 output enable signal for

UART1.

I/O

SD_CMD — Command line for SD card interface.

I/O

I2C1_SCL — I2C1 clock input/output (this pin does not use a

specialized I2C pad).

R — Function reserved.

LCD_VD[14] — LCD data.

P0[21]

118

M16

K11

[3]

I/O

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

U1_RI — Ring Indicator input for UART1.

SD_PWR — Power Supply Enable for external SD card power

supply.

U4_OE — RS-485/EIA-485 output enable signal for UART4.

CAN_RD1 — CAN1 receiver input.

I/O

U4_SCLK — USART 4 clock input or output in synchronous

mode.

Table 3.

Pin description …continued

Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC

pins).

Symbol

Description

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