LG KM710 Service Manual - Page 26

UART Interface - driver

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3. HW Circuit Description 3.3.5 UART Interface KM710d has Three UART Drivers as follow : - UART1: USB - UART2: ETM, Calibration - UART3: AT command, Fax_modem, Bluetooth UART1(USB) Resource TR_USB_DP TR_USB_DM USB_PWR VBUS UART2 (ETM) UART2_RX UART2_TX UART3 (Bluetooth) UART3_RXD UART3_TXD UART3_RTS UART3_CTS Name DP DM POWER VBUS Description Data Data USB_POWER USB_Detect RX Receive Data(UART2) TX Transmit Data(UART2) UART3_RXD UART3_TXD UART3_RTS UART3_CTS Receive Data Transmit Data Request To Send Clear To Send UART Interface Spec Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 27 - LGE Internal Use Only

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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
3. HW Circuit Description
- 27 -
3.3.5 UART Interface
KM710d has Three UART Drivers as follow :
- UART1: USB
- UART2: ETM, Calibration
- UART3: AT command, Fax_modem, Bluetooth
UART1(USB)
Resource
Name
Description
TR_USB_DP
DP
Data
TR_USB_DM
DM
Data
USB_PWR
POWER
USB_POWER
VBUS
VBUS
USB_Detect
UART2 (ETM)
UART2_RX
RX
Receive Data(UART2)
UART2_TX
TX
Transmit Data(UART2)
UART3 (Bluetooth)
UART3_RXD
UART3_RXD
Receive Data
UART3_TXD
UART3_TXD
Transmit Data
UART3_RTS
UART3_RTS
Request To Send
UART3_CTS
UART3_CTS
Clear To Send
<Table.2> UART Interface Spec