Only For Training And Service Purposes - LG KS10 Service Manual

3.8.8. USB interface
The STn8810 USB interface is USB 2.0 compliant, with On-The-Go standard extension (rev 1.0)
compliance. The USB-OTG features:
• Supports full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s) signaling bit rate
• Supports session request protocol (SRP) and host negotiation protocol (HNP)
• 8 bidirectional endpoints plus control endpoint 0
• Digital interface to external PHY
• Fully compatible with STw4810 power manager companion chip
3.8.9. I 2 C bus interface
The STn8810 provides two I©˜C bus interfaces that support the following features:
• Slave transmitter/receiver and master transmitter/receiver modes
• Multi-master capability
• 10-bit addressing
• Standard (100 kHz) and fast (400 kHz) speeds
• Compliance with I 2 C and DDC standards
In addition to receiving and transmitting data, the interface converts data from serial to parallel
format and vice-versa using an interrupt or polled handshake. The interrupts are enabled and
disabled in software.
3.8.10. MultiMediaCard/secure data card interface (MMC/SD/SDIO)
This interface can directly control one SD card (without encryption/decryption logic) or SDIO card, or
one MultiMediaCard. It also supports several of each card type using the GPIOs for card selection.
Copyright © 2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes

3. TECHNICAL BRIEF
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LGE Internal Use Only