LG Prada KE850 Service Manual page 23

3. TECHNICAL BRIEF
3.2.7. GPIO map
Over a hundred allowable resources, KE850 is using as follows except dedicated to SIM and Memory.
KE850 GPIO(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
Port function
KP_IN0
KP_IN1
KP_IN2
KP_IN3
KP_IN4
KP_IN5
GPIO_06
KP_OUT0
KP_OUT1
USART0_RXD
USART0_TXD
USART0_RTS_N
USART0_CTS_N
CC1CC6IO
USART1_RXD
USART1_TXD
GPIO_18
GPIO_19
USB_DPLUS
USB_DMINUS
KE850
Signal Name
KP_IN0
KP_IN1
KP_IN2
KP_IN3
KP_IN4
KP_IN5
FM_SND_SEL
KP_OUT0
KP_OUT1
RXD_0
TXD_0
CTS_0
RTS_0
FM_INT
RX_DEBUG
TX_DEBUG
TF_PWR_EN
KEYBACKLIGHT
USBDP
USBDM
- 24 -
Description
Refer to Key Matrix Sheet
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Output, Analog S/W Control FM Radio and Sound
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UARTO, RS232 Data
UARTO, RS232 Data
UARTO, RS232 RTS
UARTO, RS232 CTS
For FM Radio Interrupt
For debugging RX
For debugging TX
For Current Consumption on insulting T-Flash.
Using GPIO like CE500, Instead of KEYLED
of SM-Power,
USB data
USB data