GS1503B Gennum Corporation, GS1503B Datasheet - Page 35

• Manufacturer Part Number: GS1503B
• Description: Hd Embedded Audio Codec
• Manufacturer: Gennum Corporation

Table 4-24: Register Settings (CASCADE set LOW)
Table 4-25: Register Settings (CASCADE set HIGH)
4.7.3 Audio Channel Multiplex Enable
Table 4-26: Register Settings
Name
DATAIDA [1-0]
DATAIDB [1-0]
Name
DATAIDA [1-0]
DATAIDB [1-0]
Name
CHACT7
CHACT6
CHACT5
CHACT4
CHACT3
CHACT2
CHACT1
CHACT0
Description
Ch1-4 Audio data packet DID setting
Ch5-8 Audio data packet DID setting
Description
Ch1-4 Audio data packet DID setting
Ch5-8 Audio data packet DID setting
Description
Ch8 multiplex enable (1: Enabled)
Ch7 multiplex enable (1: Enabled)
Ch6 multiplex enable (1: Enabled)
Ch5 multiplex enable (1: Enabled)
Ch4 multiplex enable (1: Enabled)
Ch3 multiplex enable (1: Enabled)
Ch2 multiplex enable (1: Enabled)
Ch1 multiplex enable (1: Enabled)
When CASCADE is set HIGH (external pin or register), the GS1503B will default
to audio groups 3 and 4, where AIN1/2 and AIN3/4 will be multiplexed with audio
group 3 DID, and AIN5/6 and AIN7/8 with audio group 4 DID.
Multiplexing of individual audio channels is enabled using the CHACT[7:0] bits 7-0
of Host Interface register 013h. When set HIGH, the corresponding audio channel
is multiplexed into the audio data packet in the Chroma video data stream.
CHACT7 corresponds to audio input channel 8 and CHACT0 corresponds to audio
input channel 1. When all bits are set LOW, no audio data packets will be
multiplexed and the GS1503B will be in bypass mode.
Proprietary and Confidential
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Address
Address
Address
014
014
014
014
013
013
013
013
013
013
013
013
August 2006
Bit
Bit
Bit
1-0
3-2
1-0
3-2
7
6
5
4
3
2
1
0
GS1503B Data Sheet
Setting
Setting
Table 4-23
Table 4-23
Setting
See
See
–
–
–
–
–
–
–
–
Default
Default
Default
35 of 88
10b
01b
00b
11b
1
1
1
1
1
1
1
1