3. TECHNICAL BRIEF
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Only for training and service purposes
LGE Internal Use Only
3.8.10 UART
The MSM8x55 devices UART can be used for applications such as:
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Serial data interface that conforms to the RS-232 interface protocol
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Handset's serial data port for test and debug
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External keypad or ringer interface
- With EEPROM or flash memory-used to load and/or upgrade system software.
3.8.11 USB
The MSM8x55 IC supports USB interfaces using two controller:
The primary controller is the high-speed USB(HS-USB) port with an integrated physical layer(PHY).This HS-USB
port is also capable of supporting USB operations at low speed and full speed
- The secondary controller is the full-speed USB-UICC port