LG GD910 - Page 22

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. BB Circuit Technical brief
GD910 service manual
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
GD910 service manual
Port Function Net Name Description
KEY MATRIX
KP_IN0
BACK_UP_EN
KP_IN1
KEY_IN(1)
KP_IN2
KEY_IN(2)
KP_IN3
DSR
KP_IN4
TA_DETECT
KP_IN5
N.C
KP_IN6
KEY_IN(6)
KP_OUT0
KP_OUT(0)
KP_OUT1
KEY_OUT(1)
KP_OUT2
N.C
KP_OUT3
KEY_OUT(3)
USIF1
USIF1_RXD_MRST
UART_RX UART Data
USIF1_TXD_MTSR
UART_TX UART Data
USIF1_RTS_N
USB_ DAT_VP USB Data
USIF1_CTS_N
USB_SE0_VM USB Data
USIF2
USIF2 _RXD_MRST
BT_REG_ON Bluetooth UART Data
USIF2 _TXD_MTSR
BT_RESETB Bluetooth UART Data
USIF2_RTS_N
UART_BT_RTS Bluetooth RTS
USIF2_CTS_N
UART_BT_CTS Bluetooth CTS
USIF3
USIF3_RXD_MRST(EINT6)
UART_BT_RX Bluetooth UART Data
USIF3 _TXD_MTSR
UART_BT_TX Bluetooth UART Data
USIF3_SCLK
VT_PWR_EN VT camera power enable
CLK
CLK32K
CLK32k For FM Radio, BT CLK32K