Embedded LPC3250 Betriebsanweisung PDF herunterladen (Seite 44)

LPC3250 Developer’s Kit v2 - User’s Guide

Page 44

GPIO23

HICORE / LCDVD17

LCD databit 17

GPIO24

U1_TX

Connects to UART multiplexing (TxD); further to LCD

expansion connector, serial expansion connector, RF

module, RS232 and RS422/485.

GPIO25

U1_RX

Connects to UART multiplexing (RxD); further to LCD

expansion connector, serial expansion connector, RF

module, RS232 and RS422/485.

GPIO26

USB_VBUS_CTRL

Connects to USB2 VBUS power enable.

GPIO27

GPO_17

Connects to USB2-up LED (active low).

GPIO28

GPO_20

Connects to USB2-connect functionality (for USB device

operation).

GPIO29

SPI1_CLK

SPI-SCK. Connects to LCD expansion connector via buffer.

Connects to serial expansion connector.

GPIO30

GPO_04

SPI-SSEL. Connects to LCD expansion connector.

GPIO31

SPI1_DATIN

SPI-MISO. Connects to LCD expansion connector.

Connects to serial expansion connector.

GPIO32

SPI1_DATIO

SPI-MOSI. Connects to LCD expansion connector via

buffer.

Connects to serial expansion connector.

GPIO33

GPO_05

Connects to LCD expansion connector (GPIO function).

GPIO34

GPO_11

Connects to LCD expansion connector (GPIO function,

touch controller spi-ssel).

GPIO35

TS_XP

No special usage on OEM Base Board.

GPIO36

TS_YP

No special usage on OEM Base Board.

GPIO37

AIN0

Connects to serial expansion connector.

GPIO38

AIN1

Connects to serial expansion connector.

GPIO39

AIN2

Connects to trimming potentiometer.

GPIO40

GPO_00

Connects to speaker output on AOUT signal. A PWM

modulated signal can generate audio signals.

I2C-SDA

I2C1_SDA

I2C-SDA0, connects to PCA9532, E2PROM, LM74, 3-axis

Accelerometer, audio codec, serial expansion connector, lcd

expansion connector.

I2C-SCL

I2C1_SCL

I2C-SCL0, connects to PCA9532, E2PROM, LM74, 3-axis

Accelerometer, audio codec, serial expansion connector, lcd

expansion connector.

USB1-DP/DM

Not connected

Connects to USB Host/OTG interface (USB #1)

USB2-DP/DM

USB_CONN_DP/DM

Connects to USB Host/Device interface (USB #2)

MCICLK

Connects to MCICLK on SD/MMC connector

MCICMD

Connects to MCICMD on SD/MMC connector

MCIPWR

GPO_01

Connects to MCIPWR on SD/MMC connector

MCIDAT0

Connects to MCIDAT0 on SD/MMC connector

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