STAC9708 Datasheet, PDF (3/56 Pages) List of Unclassifed Manufacturers – Multi-Channel AC97 Codec With Multi-Codec Option

SigmaTel, Inc
Preliminary
STAC9708/11
Table of Contents
General Description
1
Ordering Information
2
1. PIN/SIGNAL Descriptions
9
1.1 Digital I/O
9
1.2 Analog I/O
10
1.3 Filter/References/GPIO
11
1.4 Power and Ground Signal
12
2. AC-Link
12
2.1 Clocking
13
2.2 Reset
13
3. Digital Interface
14
3.1 AC-Link Digital Serial Interface
Protocol
14
3.1.1 AC-Link Audio Output Frame
(SDATA_OUT)
15
3.1.1.1 Slot 1: Command Address Port 16
3.1.1.2 Slot 2: Command Data Port 17
3.1.1.3 Slot 3: PCM Playback Left
Channel
17
3.1.1.4 Slot 4: PCM Playback Right
Channel
17
3.1.1.5 Slot 5: Reserved
17
3.1.1.6 Slot 6: PCM Center Channel 17
3.1.1.7 Slot 7: PCM Left Surround
Channel
18
3.1.1.8 Slot 8: PCM Right Surround
Channel
18
3.1.1.9 Slot 9: PCM Low Frequency
Channel
18
3.1.1.10 Slot 10: PCM Alternate Left 18
3.1.1.11 Slot 11: PCM Alternate Right 18
3.1.1.12 Slot 12: Reserved
19
3.1.2.2 Slot 2: Status Data Port
21
3.1.2.3 Slot 3: PCM Record Left
Channel
21
3.1.2.4 Slot 4: PCM Record Right
Channel
21
3.1.2.5 Slots 5-12: Reserved
21
3.2 AC-Link Low Power Mode
21
3.2.1 Waking up the AC-Link
22
4. STAC9708/11 Mixer
4.1 Mixer Input.
4.2 Mixer Output
4.3 PC Beep Implementations
4.4 Programming Registers
23
25
25
25
26
4.4.1 Reset Register
27
4.4.2 Play Master Volume Registers
27
4.4.3 PC Beep Register
27
4.4.4 Analog Mixer Input Gain
28
4.4.5 Record Select Control
28
4.4.6 Record Gain Registers
30
4.4.7 General Purpose Register
30
4.4.8 3D Control Register
30
4.4.9 Multi-Channel Programming
31
4.4.10 Powerdown Control/Status
32
4.4.10.1 External Amplifier Power
Down (EAPD) Control
33
4.4.11 Extended Audio ID Register
33
4.4.12 Extended Audio Status Register 33
4.4.13 Analog Special Register
33
4.4.14 Vendor ID1 and ID2 Registers
33
5. Low Power Modes
34
6. Multiple Codec Support
36
6.1 Primary/Secondary Codec Selection
36
6.1.1 Primary Codec Operation
36
6.1.2 Secondary Codec Operation
36
6.2 Secondary Codec Register Access
Definitions
36
3.1.2 AC-Link Audio Input Frame
7. Testability
37
(SDATA_In)
19
3.1.2.1 Slot 1: Status Address Port
20
3
10/02/98