User`s guide

LPC3250 Developer’s Kit v2 - User’s Guide
Page 45
Copyright 2012 © Embedded Artists AB
MCIDAT1
MCIDAT1
Connects to MCIDAT1 on SD/MMC connector
MCIDAT2
MCIDAT2
Connects to MCIDAT2 on SD/MMC connector
MCIDAT3
MCIDAT3
Connects to MCIDAT3 on SD/MMC connector
GPIO41
GPIO_05
No special usage on OEM Base Board, but is used for
SPI_SSEL on the boot serial flash on the LPC3250 OEM
board
GPIO42
GPO_14
Connects to LCD expansion connector (backlight control).
Connects to USB1-up LED (active low).
Connects to serial expansion connector.
GPIO43
GPI_03
Connects to RS422/485 transmit/receive control.
Can optionally be connected to USB1 VBUS power enable.
Note that the LPC3250 cannot control these functionalities
on the OEM base board since GPIO43 is connected to an
input (GPI_03) on the LPC3250.
GPIO44
U7_RX / LCDVD10
LCD databit 10
GPIO45
U7_TX / LCDVD11
LCD databit 11
GPIO46
P0.6 / LCDVD12
LCD databit 12
Can optionally be connected to USB1 VBUS feedback.
GPIO47
P0.7 / LCDVD13
LCD databit 13
GPIO48
GPO_22 / LCDVD14
LCD databit 14
GPIO49
SYSCLKEN /
LCDVD15
LCD databit 15
GPIO50
SPI2_DATIO /
LCDVD20
LCD databit 20
GPIO51
SPI2_DATIN /
LCDVD21
LCD databit 21.
Also connected to USB OTG transceiver, interrupt signal.
Can optionally be connected to USB1 VBUS power switch
over-current flag (not used on the LPC3250).
GPIO52
GPIO_04 /
LCDVD22
LCD databit 22.
Can also be connected to USB OTG transceiver(not used
on the LPC3250)
GPIO53
SPI2_CLK /
LCDVD23
LCD databit 23.
Can also be connected to USB OTG transceiver (not used
on the LPC3250)
GPIO54
USB_CONN_VBUS
Connects to USB2 VBUS signal.
GPIO55
GPI_02
Connects to USB2 VBUS power switch over-current flag.
GPIO56
I2S1TX_CLK
Can be connected to I2S audio codec BCKI (I2STX-BCK)
GPIO57
I2S1TX_SDA
Can be connected to I2S audio codec BCKI (I2STX-DATA)
GPIO58
I2STX_WS
Can be connected to I2S audio codec BCKI (I2STX-WS)
GPIO59
P0.0 / I2SRX_CLK
Can be connected to I2S audio codec BCKI (I2SRX-BCK)