User`s guide

LPC3250 Developer’s Kit - User’s Guide
Page 21
Copyright 2010 © Embedded Artists AB
70
P0.23
AIN0
Can be connected to accelerometer, X-axis
71
P0.24
AIN1
Can be connected to accelerometer, Y-axis
72
P0.25
AIN2
Can be connected to accelerometer, Z-axis, or
analog input (trimpot)
73
P0.26
GPO_00
Connects to speaker output on AOUT signal
74
P0.27-SDA0
I2C1_SDA
I2C-SDA0, connects to PCA9532 (IO
expander)
75
P0.28-SCL0
I2C1_SCL
I2C-SCL0, connects to PCA9532 (IO
expander)
76
GND
GND
77
GND
GND
78
P1.2
MCICLK
Connects to MCICLK on SD/MMC connector
79
P1.3
MCICMD
Connects to MCICMD on SD/MMC connector
80
P1.5
GPO_01
Connects to MCIPWR on SD/MMC connector
81
P1.6
MCIDAT0
Connects to MCIDAT0 on SD/MMC connector
82
P1.7
MCIDAT1
Connects to MCIDAT1 on SD/MMC connector
83
P1.11
MCIDAT2
Connects to MCIDAT2 on SD/MMC connector
84
P1.12
MCIDAT3
Connects to MCIDAT3 on SD/MMC connector
85
P1.13
GPIO_05
No special usage on QVGA Base Board
86
P1.18
GPO_14
Connects to QVGA backlight control. Can also
be connected to LED (active low) to be used
for USB device/OTG
USB Device/OTG
i/f not used
87
P1.19
GPI_13
No special usage on QVGA Base Board
88
P1.20
U7_RX
LCD databit 10
89
P1.21
U7_TX
LCD databit 11
90
P1.22
P0.6
LCD databit 12
91
P1.23
P0.7
LCD databit 13
92
P1.24
GPO_22
LCD databit 14
93
P1.25
SYSCLKEN
LCD databit 15
94
P1.26
SPI2_DATIO
LCD databit 20
95
P1.27
SPI2_DATIN
LCD databit 21, can also be connected to
ISP1301 (USB OTG transceiver)
ISP1301 on base
board shall not be
used
96
P1.28
GPIO_04
LCD databit 22, can also be connected to
ISP1301 (USB OTG transceiver)
ISP1301 on base
board shall not be
used
97
P1.29
SPI2_CLK
LCD databit 23, can also be connected to
ISP1301 (USB OTG transceiver)
ISP1301 on base
board shall not be
used
98
P1.30
USB_CONN_VBUS
Can be connected to VBUS signal from USB
host power
99
P1.31
GPI_02
Can be connected to over-current error signal
from USB host power switch
100
NAND_FLASH_R
DY
GPO_19
Can be connected to SODIMM pin 119
Signal not used.
Exist internally on
OEM board.