LG G5500 Manual page 23

Resource
TX_MODEM
RX_MODEM
CTS_MODEM
RTS_MODEM
GPIO 3
Resource
TXIR_IRDA
TX_IRDA
RXIR_IRDA
RX_IRDA
SD_IRDA
Figure 3-4. UART Interface spec.
UART MODEM (UART1)
Name
TXD
RXD
CTS
RTS
DSR
UART IrDA (UART2)
Name
TX_IRDA
TX
RX_IRDA
RX
SD_IRDA
-24-
Description
Transmit Data
Receive Data
Clear To Send
Request To Send
Data Set Ready
Description
Infra-Red Transmit Pulse
Transmit Data(UART2)
Infra-Red Receive Pulse
Receive Data(UART2)
IRDA transceiver Shutdown Mode