GS1503BCVE2 GENNUM [Gennum Corporation], GS1503BCVE2 Datasheet - Page 32
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GS1503BCVE2
Manufacturer Part Number
GS1503BCVE2
Description
HD Embedded Audio CODEC Data Sheet
Manufacturer
GENNUM [Gennum Corporation]
Datasheet
1.GS1503BCVE2.pdf
(90 pages)
- Current page: 32 of 90
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4.6.7 Audio Channel Status CRC Insert Function
When bits 7-4 of Host Interface register 011h are set HIGH, the GS1503B will
re-calculate the Channel Status CRC word for the corresponding audio input channel
pair. The re-calculated Channel Status CRC word is multiplexed into the audio data
packet as per SMPTE 299M. When bits 3-0 of Host Interface register 011h are set LOW,
the Channel Status CRC word is not updated and the existing Channel Status CRC word
will be multiplexed. In serial audio input mode, these registers should be set LOW.
Table 4-21: Register Settings
4.7 Audio Data Packets
4.7.1 Audio Data Packet Structure
Figure 4-15
The audio data packets are multiplexed into the Chroma channel of the video data
stream.
that the GS1503B will automatically generate certain audio data packet words.
Figure 4-15: Audio Data Packet Structure
GS1503B HD Embedded Audio CODEC
Data Sheet
37953 - 1
Name
ACRC7/8_INS
ACRC5/6_INS
ACRC3/4_INS
ACRC1/2_INS
Table 4-22
shows the structure of the audio data packets as defined in SMPTE 299M.
December 2009
lists the description of the individual audio data packet words. Note
Description
Ch7/8 Audio Channel Status CRC insertion (1: Insertion)
Ch5/6 Audio Channel Status CRC insertion (1: Insertion)
Ch3/4 Audio Channel Status CRC insertion (1: Insertion)
Ch1/2 Audio Channel Status CRC insertion (1: Insertion)
ECC Protected
User Data Words
Address
011
011
011
011
Bit
7
6
5
4
Setting
1
1
1
1
Default
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