STAC9766 Datasheet, PDF (47/97 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 19. Programming Registers
Address
Name
6Eh (Page01h) Reserved
70h
Enable Register
72h
Analog Current Adjust
74h
EAPD Access
78h
High Pass Filter Bypass
7Ah
Reserved
7Ch
Vendor ID1
7Eh
Vendor ID2
Note: * depends upon CODECID
Default
0000h
0000h
0000h
0800h
0000h
NA
8384h
7652h
8.1. Register Descriptions
Location
NA
NA
8.4.10; page77
8.4.11; page78
8.4.12; page79
NA
8.5.1; page80
8.5.2; page80
8.1.1. Reset (00h)
Default: 6A90h
D15
D14
D13
D12
D11
D10
D9
D8
RSRVD
SE4
SE3
SE2
SE1
SE0
ID9
ID8
D7
D6
D5
D4
D3
D2
D1
D0
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Writing any value to this register performs a register reset, which causes all registers to revert to
their default values. This register reset also resets all the digital block. Reading this register returns
the ID code of the part.
Bit(s)
15
14:10
9
8
7
6
5
4
3
2
1
0
Reset Value
0
11010
1
0
1
0
0
1
0
0
0
0
Name
RESERVED
SE4:SE0
ID9
ID8
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Description
Bit not used, should read back 0
IDT ID for SS3D
20 bit ADC resolution (supported)
18 bit ADC resolution
20 bit DAC resolution (supported)
18 bit DAC resolution
Loudness (bass boost)
Headphone out (supported)
Simulated stereo (mono to stereo)
Bass & treble control
Reserved
Dedicated MIC PCM in channel
IDT™
47
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06