GS1503B Gennum Corporation, GS1503B Datasheet - Page 59

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

5.5.6 TRS Word Insertion
Table 5-12: Register Settings
5.6 Audio Data Processing
5.6.1 Digital Audio Output Format
Table 5-14: Register Settings
Name
TRS_INS
Name
AM_SEL
AM[1:0]
Description
TRS word insertion (1: Enabled)
Description
0: External pin setting
1: Register setting
Audio output format selection (AM[1] is MSB)
When TRS_INS bit 0 of Host Interface register 008h is set HIGH, the GS1503B will
insert TRS codes into the video data stream. When set LOW, existing TRS codes
will remain in the output video stream.
The GS1503B has two audio output formats, AES/EBU digital audio output and
serial output, as listed in
the following two modes. See
•
•
The audio output format is configured using the AM[1:0] external pins or via
AM[1:0] bits 1-0 in Host Interface register 010h. To configure the audio output
format via the Host Interface, AM_SEL bit 7 in Host Interface register 010h must
be set HIGH. The GS1503B will default to the AM[1:0] external pin setting.
NOTE: When configured in AES/EBU audio mode, the GS1503B will not output a
48kHz (fs) word clock at the WCOUTA and WCOUTB pins.
Table 5-13: Audio Output Formats
Proprietary and Confidential
AM[1:0]
24-bit Left Justified; MSB first
24-bit Right Justified; MSB last
0
1
2
Audio Output Format
Serial audio output: 24-bit Left Justified; MSB first
Serial audio output: 24-bit Right Justified; MSB last
AES/EBU audio output
Table
37953 - 0
Figure
Address
5-13. The serial audio output can be formatted in
008
Address
5-6:
010
010
August 2006
Bit
0
Bit
1-0
7
GS1503B Data Sheet
Setting
Setting
Table 5-13
See
1
1
Default
Default
59 of 88
1
0
0