User manual

LPC4357 Developer’s Kit - User’s Guide
Page 44
Copyright 2013 © Embedded Artists AB
GPIO48
PB_5
LCD databit 14
GPIO49
PB_4
LCD databit 15
GPIO50
PB_3
LCD databit 20
GPIO51
PB_2
LCD databit 21.
Also connected to USB OTG transceiver, interrupt signal.
Can optionally be connected to USB1 VBUS power switch over-
current flag.
GPIO52
PB_1
LCD databit 22, can also be connected to USB OTG transceiver
GPIO53
PB_0
LCD databit 23, can also be connected to USB OTG transceiver
GPIO54
USB0_VBUS
Connects to USB2 VBUS signal.
GPIO55
P8_0
Connects to USB2 VBUS power switch over-current flag.
GPIO56
P3_0
Can be connected to I2S audio codec BCKI (I2S_TX_SCK)
GPIO57
PC_12
Can be connected to I2S audio codec BCKI (I2S_TX_SDA)
GPIO58
PC_13
Can be connected to I2S audio codec BCKI (I2S_TX_WS)
GPIO59
P6_0
Can be connected to I2S audio codec BCKI (I2S_RX_SCK)
GPIO60
P6_1
Can be connected to I2S audio codec BCKI (I2S_RX_WS)
GPIO61
P6_2
Can be connected to I2S audio codec BCKI (I2S_RX_SDA)
GPIO62
WAKEUP3
No special usage on OEM Base Board.
GPIO63
WAKEUP2
No special usage on OEM Base Board.
GPIO64
WAKEUP1
No special usage on OEM Base Board.
GPIO65
WAKEUP0
No special usage on OEM Base Board.
GPIO66
USB0_ID
Can be connected to USB2 OTG interface, id-pin
GPIO67
SAMPLE
No special usage on OEM Base Board.
GPIO68
CLK2_OUT
Can be connected to I2S audio codec SYSCLK.
GPIO69
P9_2
Can be used as chip select for 16-bit register on external
memory bus, but not for the LPC4357.
Can be used as enable signal for IrDA transceiver (active low).
GPIO70
P8_1
Connects to LCD expansion connector (interrupt signal from
touch screen controller).
GPIO71
P8_2
Can be connected to Ethernet PHY interrupt output
GPIO72
PC_2
Can be connected to NAND FLASH busy output.
Connects to serial expansion connector.
GPIO73
PA_1
Connects to joystick switch
GPIO74
PA_2
Connects to joystick switch
GPIO75
PA_3
Connects to joystick switch
GPIO76
P9_0
Connects to joystick switch
GPIO77
P9_1
Connects to joystick switch
GPIO78
PF_8
No special usage on OEM Base Board.