LG KE 770, Service Manual

Page: 23 / 144

3.2.7. GPIO map
Over a hundred allowable resources, KE770is using as follows except dedicated to SIM and Memory.
KE770GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is
shown in below table.
Table 5 S-Gold2 GPIO pin Map
3. TECHNICAL BRIEF
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Port function ME820 Net Name Description
KEY MATRIX
KP_IN0 KP_IN0 Refer to Key Matrix
KP_IN1 KP_IN1 Refer to Key Matrix
KP_IN2 KP_IN2 Refer to Key Matrix
KP_IN3 KP_IN3 Refer to Key Matrix
KP_IN4 KP_IN4 Refer to Key Matrix
KP_IN5 KP_IN5 Refer to Key Matrix
KP_IN6 KP_OUT5 Refer to Key Matrix
KP_OUT0 KP_OUT0 Refer to Key Matrix
KP_OUT1 KP_OUT1 Refer to Key Matrix
KP_OUT2 KP_OUT2 Refer to Key Matrix
KP_OUT3 KP_OUT3 Refer to Key Matrix
USART_0
USART0_RXD RXD_0 UARTO, RS232 Data
USART0_TXD TXD_0 UARTO, RS232 Data
USART0_RTS_N CTS_0 UARTO, RS232 RTS
USART0_CTS_N RTS_0 UARTO, RS232 CTS
USART_1
USART1_RXD TX_DEBUG For debugging
USART1_TXD RX_DEBUG For debugging
USART1_RTS_N Not Use
USART1_CTS_N Not Use
USB
USB_DPLUS USB_DP USB data
USB_DMINUS USB_DM USB data