Crystal CS4281, Programming Manual

Page: 109 / 231

CS4281 Programming Manual
DS308PRM1 109
Confidential Draft 3/7/00
LS[4:0]/
RS[4:0]
AC ‘97 Output
Slot
AC ‘97 Slot Function (primary & secondary codec)
0 3 Left PCM Playback
1 4 Right PCM Playback
2 5 Phone Line 1 DAC
3 6 Center PCM Playback
4 7 Left Surround PCM Playback
5 8 Right Surround PCM Playback
6 9 LFE PCM Playback
7 10 Phone Line 2 DAC
8 11 HeadSet DAC
29 Left WT Data sent to CS4281 Left FM/WT digital mixer
30 Right WT Data sent to CS4281 Right FM/WT digital mixer
31 None FIFO channel is not used (data thrown away)
20. 1. DMRn.TR[1:0] must equal 10 (transfer from host memory to FIFO).
21. 2. SRC channels must both come from one FIFO. SRC left and right cannot come from different
FIFOs and cannot be swapped.
LS[4:0]/
RS[4:0]
AC ‘97
Input Slot
AC ‘97
Codec
AC ‘97 Slot Function
10 3 Primary Left PCM Record
11 4 Primary Right PCM Record
12 5 Primary Phone Line 1 ADC
13 6 Primary Mic ADC
14 7 Primary reserved
15 8 Primary reserved
16 9 Primary reserved
17 10 Primary Phone Line 2 ADC
18 11 Primary HeadSet ADC
20 3 Secondary Left PCM Record
21 4 Secondary Right PCM Record
22 5 Secondary Phone Line 1 ADC
23 6 Secondary Mic ADC
24 7 Secondary reserved
25 8 Secondary reserved
26 9 Secondary reserved
27 10 Secondary Phone Line 2 ADC
28 11 Secondary HeadSet ADC
31* none Channel is not used, data returned is fixed at 0
22. * The unused channel must be RS[4:0] when recording a mono stream from the AC Link.
23. 1. 1. DMRn.TR[1:0] must equal 01 (transfer from FIFO to host memory).
24. 2. SRC channels must both come from one FIFO. SRC left and right cannot come from different
FIFOs and cannot be swapped.
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