LG GX500 Service Manual page 21

3. TECHNICAL BRIEF
GX500 Operational Description
3.2.1.7 GPIO map
Over a hundred allowable resources, GX500 is using as follows except dedicated to SIM and Memory. GX500
GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in
below table
Table 3-5 S-Gold3 GPIO pin Map
Port function
#Keypad
KP_IN0
KP_IN1
KP_IN4
GPIO_03
CC0CC4IO
CC1CC0IO
CC1CC4IO
KP_OUT0
KP_OUT1
KP_OUT2
KP_OUT3
#USIF1: Universal Serial IF
#USB
USIF1_RXD_MRST
USIF1_TXD_MTSR
USIF1_RTS_N
USIF1_CTS_N
GPIO_15
GPIO_16
USIF2_RTS_N
USIF2_CTS_N
USIF3_RXD_MRST
USIF3_TXD_MTSR
GPIO_21
MMCI2_CMD
MMCI2_DAT[0]
MMCI2_CLK
CIF_D0
CIF_D1
CIF_D2
LGE Internal Use Only
LG Electronics
Signal Name Reset Value
KEY_ROW0 T/PU
KEY_ROW1 T/PU
KEY_ROW4 T/PU
HSMIC_BIAS_EN T/PU
CHG_DET T/PU
MMC_DET T/PU
ACCEL_INT T/PU
KEY_COL0 T/PU
KEY_COL1 T/PU
KEY_COL2 T/PU
KEY_COL3 T/PU
SIM1_UART_RX T/PD
SIM1_UART_RX T/PD
USB_DAT_VP T/PU
USB_SE0_VM T/PD
BT_SEL T/PU
USB_SEL T/PD
SIM1_BT_RTS T/PD
SIM1_BT_CTS T/PD
SIM1_BT_RX T/PD
SIM1_BT_TX T/PD
SGR_PWR_ON T/PD
MMC_CMD T/PD
MMC_D0 T/PD
MMC_CLK T/PD
CIF_D0 T/PD
CIF_D1 T/PD
CIF_D2 T/PD
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Description
"Falling Edge" INT on TA
"Falling Edge" INT
For Accel Sensor
"High" Enable
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Only for training and service purposes
LGE Property
Revision A