Functional Description; System Architecture, Sink Application - THOMSON 22E92NH22 Service Manual

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 SiI-DS-1016-0.80
© 2007 Silicon Image, Inc. CONFIDENTIAL