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PI7VD9004ABH Datasheet(PDF) 19 Page - Pericom Semiconductor Corporation

Part No. PI7VD9004ABH
Description  Adaptive EQ 4-channel 960H Video Decoder
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Maker  PERICOM [Pericom Semiconductor Corporation]
Homepage  http://www.pericom.com
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PI7VD9004ABH Datasheet(HTML) 19 Page - Pericom Semiconductor Corporation

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PI7VD9004ABH
Adaptive EQ 4-channel 960H Video Decoder
Pericom Semiconductor Corporation  
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www.pericom.com     
 
4.11 I2C Host Interface
The processor can access the internal register by executing read or write command to the indexed locations to implement
the function of detecting audio and video signal and reveals the detection status through the configuration registers. If any
audio or video channel is present or absent, interrupt pin (INT) can notify the status to the processor to manage CPU
resource effectively by polling the status. The chip supports flexibilities to select various detection modes and enable
individual audio/video channel for generating interrupt.
These control bits to interrupt pin are defined in the registers of AVDET_MODE, AVDET1_ENA, AVDET2_ENA,
A51DET_ENA and A52DET_ENA.
 
Figure 4-6 Interrupt timing diagram of Audio/Video detection
13-0174


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