Silicon Image
Confidential for Philips
Consumer Electronics
Internal Use Only
SiI9185A 3:1 HDMI 1.3 Switch
Preliminary Data Sheet
Silicon Image, Inc.
Functional Description
The SiI9185A provides a low-cost method of providing additional HDMI inputs to a DTV. System cost is reduced by
integrating DDC and HPD switching along with integrated EDID. Feature enhancements like the embedded CEC API
provide a simple method of adding CEC to a DTV without burdening the system microcontroller.
Figure 2 and Figure 3 show the functional blocks of the device as applied to sink and source applications, respectively.
Pin descriptions begin on page 20.
Figure 2. System Architecture, Sink Application
4 © 2007 Silicon Image, Inc. CONFIDENTIAL SiI-DS-1016-0.80
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