1 normal mode data timing, 2 i2s mode data timing, 1 normal mode data timing 6.1.2 i – Cirrus Logic CS1810xx User Manual
Page 21: S mode data timing, Cs18100x/cs49610x, cs18101x/cs49611x, Cs18102x/cs49612x, Figure 10. audio data timing detail - i, S mode, 64fs, Figure 11. audio data timing detail - i, S mode, 128fs
CobraNet Hardware User’s Manual
Digital Audio Interface
DS651UM23
©
Copyright 2005 Cirrus Logic, Inc.
21
Version 2.3
6.1.1 Normal Mode Data Timing
Figure 8. Audio Data Timing Detail - Normal Mode, 64FS - CS18100x/CS49610x, CS18101x/CS49611x
Figure 9. Audio Data Timing Detail - Normal Mode, 128FS - CS18102x/CS49612x
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.
6.1.2 I
2
S Mode Data Timing
Figure 10. Audio Data Timing Detail - I
2
S Mode, 64FS - CS18100x/CS49610x, CS18101x/CS49611x
Figure 11. Audio Data Timing Detail - I
2
S Mode, 128FS - CS18102x & CS49612x
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 arrives one bit period following 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
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