GS1503B Gennum Corporation, GS1503B Datasheet - Page 78

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

Table 5-29: Demultiplex Mode Host Interface Registers (Continued)
Control
Item
Name
ADPG2_DET
ADPG1_DET
RSV
ECCB_ON
ECCA_ON
CASCADE
RSV
AMUTEB
AMUTEA
DATAIDB[1:0]
Description
Audio group 2 data packet detect. When set HIGH,
audio data packets with group 2 DID have been
detected in the incoming Chroma video data stream.
NOTE: Once this bit has been set, it will remain set
until a device reset is performed.
Audio group 1 data packet detect. When set HIGH,
audio data packets with group 1 DID have been
detected in the incoming Chroma video data stream.
NOTE: Once this bit has been set, it will remain set
until a device reset is performed.
Not used.
Ch5-8 error correction enable. When set HIGH, the
GS1503B will perform error correction on audio data
packets for channels 5 to 8, based on the six ECC
words.
Ch1-4 error correction enable. When set HIGH, the
GS1503B will perform error correction on audio data
packets for channels 1 to 4, based on the six ECC
words.
Cascade select. When set HIGH, the GS1503B will
default to audio groups 3 and 4. When set LOW, the
GS1503B will default to audio groups 1 and 2.
NOTE: The status of the CASCADE external pin is
not updated in this register. The value programmed
in this register is logical OR'd with the CASCADE
external pin setting.
Not used.
Ch5-8 audio mute enable. When set HIGH, the
multiplexed audio packets for audio channels 5 to 8
are forced to zero.
NOTE: The status of the MUTE external pin is not
updated in this register. The value programmed in
this register is logical OR'd with the MUTE external
pin setting.
Ch1-4 audio mute enable. When set HIGH, the
multiplexed audio packets for audio channels 1 to 4
are forced to zero.
NOTE: The status of the MUTE external pin is not
updated in this register. The value programmed in
this register is logical OR'd with the MUTE external
pin setting.
Ch5-8 audio group DID setting. Designates the
audio group DID for audio channels 5 to 8. See
Table
register) is set LOW, the default setting is audio
group 2. When CASCADE is set HIGH, the default
setting is audio group 4.
Proprietary and Confidential
5-19. When CASCADE (external pin or
37953 - 0
August 2006
Address
013
013
013
013
013
014
014
014
014
014
GS1503B Data Sheet
Bit
3-2
3-2
5
4
1
0
7
6
5
4
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
–
–
Default
78 of 88
10b
0
0
0
1
1
0
0
0
0