LG GD910 Service Manual page 22

3.2.5 GPIO map
Over a hundred allowable resources, GD910 is using as follows except dedicated to SIM and Memory. GD910
GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in
below table
[Table 3.2.5-1] S-Gold®3H GPIO pin Map
Port Function
KEY MATRIX
KP_IN0
KP_IN1
KP_IN2
KP_IN3
KP_IN4
KP_IN5
KP_IN6
KP_OUT0
KP_OUT1
KP_OUT2
KP_OUT3
USIF1
USIF1_RXD_MRST
USIF1_TXD_MTSR
USIF1_RTS_N
USIF1_CTS_N
USIF2
USIF2 _RXD_MRST
USIF2 _TXD_MTSR
USIF2_RTS_N
USIF2_CTS_N
USIF3
USIF3_RXD_MRST(EINT6)
USIF3 _TXD_MTSR
USIF3_SCLK
CLK
CLK32K
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Net Name
BACK_UP_EN
KEY_IN(1)
KEY_IN(2)
DSR
TA_DETECT
N.C
KEY_IN(6)
KP_OUT(0)
KEY_OUT(1)
N.C
KEY_OUT(3)
UART_RX
UART_TX
USB_ DAT_VP
USB_SE0_VM
BT_REG_ON
BT_RESETB
UART_BT_RTS
UART_BT_CTS
UART_BT_RX
UART_BT_TX
VT_PWR_EN
CLK32k
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3. BB Circuit Technical brief
GD910 service manual
GD910 service manual
Description
UART Data
UART Data
USB Data
USB Data
Bluetooth UART Data
Bluetooth UART Data
Bluetooth RTS
Bluetooth CTS
Bluetooth UART Data
Bluetooth UART Data
VT camera power enable
For FM Radio, BT CLK32K
LGE Internal Use Only