GS1503B Gennum Corporation, GS1503B Datasheet - Page 48

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

Table 4-33: Multiplex Mode Host Interface Registers (Continued)
Control
Item
Audio
Channel
Status
Block
Audio
Data
Packet
AUDIO_CS[7:0]
DATAIDB[1:0]
DATAIDA[1:0]
CHACT[7-0]
AUDIO_CS
CASCADE
[183:176]
AMUTEB
AMUTEA
Name
RSV
:
Description
Audio Channel Status set. Valid in Serial Audio
Input modes. Used to enter the 23 8-bit bytes of
the Audio Channel Status Block, as defined in
AES3-1992.
NOTE: The CRC byte is generated internally by
the GS1503B.
Audio channel multiplex enable. When set HIGH,
the corresponding audio channel is multiplexed
into the Chroma video data stream. "CHACT[7]"
corresponds to audio input channel 8 and
"CHACT[0]" 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.
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
register) is set LOW, the default setting is audio
group 2. When CASCADE is set HIGH, the
default setting is audio group 4.
Ch1-4 audio group DID setting. Designates the
audio group DID for audio channels 1 to 4.
See
register) is set LOW, the default setting is audio
group 1. When CASCADE is set HIGH, the
default setting is audio group 3.
Proprietary and Confidential
Table
Table
4-23. When CASCADE (external pin or
4-23. When CASCADE (external pin or
37953 - 0
Address
August 2006
058
06E
013
014
014
014
014
014
014
:
Bit
GS1503B Data Sheet
7-0
7-0
7-0
3-2
1-0
7
6
5
4
:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
–
Default
Table 4-34
48 of 88
See
FFh
10b
11b
0
–
0
0