STAC9766 Datasheet, PDF (40/97 Pages) Integrated Device Technology – TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING

STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
PC AUDIO
Table 14. AC-link Input Slots From CODEC
Slot
Name
7, 8, 9 Vendor reserved
10 Modem Line 2 ADC
11 Modem handset input
12 Modem IO status
Description
Vendor specific (enhanced input for docking, array mic, etc.)
16-bit modem data from modem line 2 input
16-bit modem data for modem handset input
GPIO read port for modem control
The AC-link output slots dedicated to audio are defined as follows:
Table 15. AC-link Output Slots Dedicated To Audio
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 16. 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.
Table 17. Audio Interrupt Slot Definitions
Bit
19-1
0
Description
Reserved (Audio CODEC will return zeros in bits 19-1)
Optional: Assertion = 1 will cause interrupt to be propagated to Audio controller system
interrupt. See register 24h definition for enabling mechanism.
IDT™
40
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06