STAC9752 Datasheet, PDF (41/95 Pages) Integrated Device Technology – TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

STAC9752/9753
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
5.6.
Slot Assignments for Audio
Figure 19. Bi-directional AC-Link Frame with Slot assignments
SLOTS
0 1 2 3 4 5 6 7 8 9 10 11 12
SYNC
OUTGOING STREAMS
(Controller output - SDATA_OUT)
TAG
CMD CMD
ADDR DATA
PCM
LEFT
PCM
RT
NA
PCM
CTR
PCM PCM
LSURR RSURR
PCM
LFE
SPDIF
SPDIF
IO
CTRL
INCOMING STREAMS
(codec output - SDATA_IN)
TAG
STATUS STATUS
ADDR DATA
PCM
LEFT
PCM LINE1
RT
ADC
PCM Vendor Vendor Vendor LINE2 HSET
IO
MIC RSVD RSVD RSVD ADC ADC STATUS
TAG PHASE
DATA PHASE
Slot 12 can be used by the
AC'97 Codec if a Modem
Codec is not present.
Note: The DAC & ADC can be assigned to slots 3&4, 6&9, 7&8, or 10&11.
The AC-Link output slots dedicated to audio are defined as follows:
Table 13. AC-Link Slot Definitions
Slot
3
4
6
7
8
9
10:11
12
Name
PCM L DAC playback
PCM R DAC playback
PCM Center
PCM L Surround
PCM R Surround
PCM LFE
SPDIF Out
Reserved
Description
20-bit PCM data for Left channel
20-bit PCM data for Right channel
20-bit PCM data for Center channel
20-bit PCM data for L Surround channel
20-bit PCM data for R Surround channel
20-bit PCM data for LFE channel
20-bit SPDIF Output
Reserved
The AC-Link input slots dedicated to audio are defined as follows:
Table 14. AC-Link Input Slots Dedicated To Audio
Slot
Name
Description
3
PCM L ADC record
20-bit PCM data from Left input
4
PCM R ADC record 20-bit PCM data from Right inputs
6 Dedicated Microphone ADC 20-bit PCM data from optional 3rd ADC input
7
Vendor reserved
Vendor specific (enhanced input for docking, array mic, etc.)
8
Vendor reserved
Vendor specific (enhanced input for docking, array mic, etc.)
9
Vendor reserved
Vendor specific (enhanced input for docking, array mic, etc.)
12
Audio Interrupt
Provides optional interrupt capability for Audio CODEC (not usable when
a modem is present)
Note: The ADC can be assigned to slots 3&4, 6&9, 7&8, or 10&11.
IDT™
41
STAC9752/9753
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
REV 3.3 1206