GS1503BCVE2 GENNUM [Gennum Corporation], GS1503BCVE2 Datasheet - Page 27

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

4.6 Audio Data Processing
4.6.1 Digital Audio Input Format
The GS1503B will accept two audio input formats, AES/EBU digital audio input and
serial input, as listed in
modes. See
•
•
The audio input 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 input 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.
Table 4-16: Audio Input Formats
Table 4-17: Register Settings
Figure 4-11: Audio Input Formats
GS1503B HD Embedded Audio CODEC
Data Sheet
37953 - 1
WCINA/WCINB
AM[1:0]
Name
AM_SEL
AM[1:0]
(AES/EBU)
24-bit Left Justified; MSB first
24-bit Right Justified; MSB last
MODE0
MODE1
MODE2
0
1
2
Figure
23
MSB
0
Preamble
Sync
December 2009
Audio Input Format
Serial audio input: 24-bit Left Justified; MSB first
Serial audio input: 24-bit Right Justified; MSB last
AES/EBU audio input
4-11.
3 4
Description
0: External pin setting
1: Register setting
Audio input format selection (AM[1] is MSB)
Table
LSB
0
4-16. Serial input can be formatted in the following two
24-bit Audio Sample Word
Channel 1
Channel Status Bit
User Data Bit
Validity Bit
Parity Bit
0
2728293031
V U C P
23
23
MSB
0
Preamble
Sync
Address
3 4
010
010
LSB
0
Bit
24-bit Audio Sample Word
1-0
7
Channel 2
Setting
Table 4-11
See
1
0
2728293031
Default
V U C P
23
0
0
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