GS1503BCVE2 GENNUM [Gennum Corporation], GS1503BCVE2 Datasheet - Page 73

• Manufacturer Part Number: GS1503BCVE2
• Description: HD Embedded Audio CODEC Data Sheet
• Manufacturer: GENNUM [Gennum Corporation]

Table 5-27: Register Settings
5.11 Demultiplex Mode With Word Clock Input
Some commercially available HD audio embedding modules do not encode the audio
word clock phase information correctly in the CLK words of the audio data packet. If this
clock information is not correctly encoded, the GS1503B will not output the audio data
correctly. Also, the GS1503B will be unable to reproduce the 48kHz audio word clock (fs)
at the WCOUTA and WCOUTB pins in serial audio output modes.
If the GS1503B is to be used in conjunction with a HD audio module, which encodes
audio clock phase information incorrectly, the DEC_MODE external pin or DECMODE
bit 2 of Host Interface register 01Eh must be set HIGH. When HIGH, an audio word clock
synchronous to the original word clock used for embedding must be input at the WCINA
and WCINB pins.
When the embedded clock phase data for audio channel 1 to 4 is detected as being in
error, the MUXERRA bit 0 of Host Interface register 01Eh will be set HIGH. Similarly,
when the embedded clock phase data for audio channel 5 to 8 is detected as being in
error, the MUXERRB bit 1 of Host Interface register 01Eh will be set HIGH.
Table 5-28: Register Settings
GS1503B HD Embedded Audio CODEC
Data Sheet
37953 - 1
Name
ANCI
DEL_SEL
ADPG4_DEL
ADPG3_DEL
ADPG2_DEL
ADPG1_DEL
ACPG4_DEL
ACPG3_DEL
ACPG2_DEL
ACPG1_DEL
NDID[7:0]
Name
DECMODE
December 2009
Figure 5-13
Description
Ancillary data packet delete (1: Deletion enabled)
Ancillary data packet delete mode select
(0: Entire data delete; 1: Group designated data
delete)
Audio group 4 data packet delete (1: Delete)
Audio group 3 data packet delete (1: Delete)
Audio group 2 data packet delete (1: Delete)
Audio group 1 data packet delete (1: Delete)
Audio group 4 control packet delete (1: Delete)
Audio group 3 control packet delete (1: Delete)
Audio group 2 control packet delete (1: Delete)
Audio group 1 control packet delete (1: Delete)
Arbitrary packet DID delete setting
Description
Demultiplex Mode with word clock input enable
(1: Enabled)
shows a system example.
Address
Address
040
040
041
041
041
041
041
041
041
041
042
01E
Bit
7-0
0
6
5
4
3
2
1
0
1
7
Bit
2
Setting
Setting
1
1
–
–
–
–
–
–
–
–
–
1
Default
Default
0
0
0
0
0
0
0
0
0
0
0
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0