Only For Training And Service Purposes - LG GM310 Service Manual

3. BB Circuit Technical brief
3.2.5 GPIO map
Over a hundred allowable resources,
GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level,
GM310
is shown in below table
[Table 3.2.5-1] S-Gold3H-LC 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
USIF3 _TXD_MTSR
GPIO_21
CLK
CLK32K
GPIO_22
LGE Internal Use Only
is using as follows except dedicated to SIM and Memory.
GM310
Net Name Description
KEYIN0
KEYIN1
KEYIN2
KEYIN3
KEYIN4
KEYIN05
KEYOUT5
KEYOUT0
KEYOUT1
KEYOUT2
KEYOUT3
UART_RX UART Data
UART_TX UART Data
USB_ DAT_VP USB Data
USB_SE0_VM USB Data
TCC_PWRON Multimedia chip power on
TCC_RESET Multimedia chip reset
BT_UART_RTS Bluetooth RTS
BT_UART_CTS Bluetooth CTS
BT_UART_RX Bluetooth UART Data
BT_UART_TX Bluetooth UART Data
USB_SEL USB 1.1, 2.0 select
CLK32k For FM Radio, BT CLK32K
Not used
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GM310f service manual
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Only for training and service purposes