Only For Training And Service Purposes - LG KS10 Service Manual

3.10.9. General-Purpose Input/Output Interface
The MSM6275 device has general-purpose bidirectional input/output pins. Some of the GPIO pins
have alternate functions supported on them. The alternate functions include USB interface, additional
RAM, ROM, general-purpose chip selects, parallel LCD interface, and a UART interface. The function
of these pins is documented in the various software releases.
3.10.10. UART
There are three UARTs in the MSM6275 ASIC:
• UART1 for data
• UART2 (can be used for USIM interface)
• UART3 (can be used for PM SBI interface)
3.10.11. USB
The MSM6275 device integrates a universal serial bus(USB) controller that supports both
unidirectional and bidirectional transceiver interfaces. The USB controller acts as a USB peripheral
communicating with the USB host. It is also capable of a USB OTG interface to a USB OTG
Transceiver.
Copyright © 2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes

3. TECHNICAL BRIEF
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