This part is a kind of semiconductor called SiI9287B.

Function of this product has HDMI Port Processor.

Manufacturers : Silicon image

Image and pinout :

Some of the text within the PDF file :

Data Brief SiI9287B HDMI Port Processor with InstaPort Viewing Technology Data Brief Document # SiI-DB-1070-B01 SiI9287B HDMI Port Processor with InstaPort Viewing Technology Data Brief Silicon Image, Inc. September 2010 Copyright Notice Copyright © 2009-2010 Silicon Image, Inc. All rights reserved. These materials contain proprietary and confidential information (including trade secrets, copyright, and other interests) of Silicon Image, Inc. You may not use these materials except only for your bona fide non-commercial evaluation of your potential purchase of products and/or services from Silicon Image or its affiliates, and/or only in connection with your purchase of products and/or services from Silicon Image or its affiliates, and only in accordance with the terms and conditions [ ... ]

SiI9287B PDF Datasheet Download