STAC9752A Datasheet, PDF (84/106 Pages) Integrated Device Technology – AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK

STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
PC AUDIO
Bit(s)
1
0
Reset
Value
0
0
Name
Description
Reserved Reserved
ADC HPF BYP
0 = Normal operation, (ADC High Pass Filter active)
1 = ADC High Pass Filter Bypass
7.5. Vendor ID1 and ID2 (Index 7Ch and 7Eh)
These two registers contain four 8-bit ID codes. The first three codes have been assigned by
Microsoft using their Plug and Play Vendor ID methodology. The fourth code is a IDT assigned code
identifying the STAC9752A/9753A. The ID1 register (index 7Ch) contains the value 8384h, which is
the first (83h) and second (84h) bytes of the Microsoft ID code. The ID2 register (index 7Eh) contains
the value 7652h, which is the third (76h) byte of the Microsoft ID code, and 52h which is the
STAC9752A/9753A ID code.
7.5.1.
Vendor ID1 (7Ch)
Default: 8384h
D15
D14
D13
D12
D11
D10
D9
D8
1
0
0
0
0
0
1
1
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
0
1
0
0
7.5.2.
Vendor ID2 (7Eh)
Default: 7652h
D15
D14
D13
D12
D11
D10
D9
D8
0
1
1
1
0
1
1
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
0
1
0
IDT™
84
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
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