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©
Copyright 2004 Cirrus Logic, Inc.
DS651UM21
Version 2.1
CobraNet Hardware User’s Manual
Digital Audio Interface
6.1.3 Standard Mode Data Timing
Figure 12. Audio Data Timing Detail - Standard Mode, 64FS - CS18100, CS18101
Figure 13. Audio Data Timing Detail - Standard Mode, 128FS - CS18102
Each audio channel is comprised of 32 bits of data, regardless of audio sample size. The
figure above shows 24-bit audio data.
The MSB is left justified and is aligned with FS1. Data is sampled on the rising edge of
DAI_SCLK and data changes on the falling edge.
FS1
DAI1_DATAx
DAO1_DATAx
DAI1_SCLK
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
23
1
0
Unused
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
23
1
0
Unused
FS1
DAI1_DATAx
DAO1_DATAx
DAI1_SCLK
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2
23
1 0
Unused
22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2
23
1 0
Unused
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2
23
1 0
Unused
22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2
23
1 0
Unused