STAC9766 Datasheet, PDF (70/97 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
Bit(s) Reset Value
12-8
7-0
Name
CL4:CL0
RV7:RV0
Description
CODEC Compatibility Class (RO)
This is a CODEC vendor specific field to define software compatibility for
the CODEC. Software read this field together with CODEC vendor ID
(reg 7C-7Eh) to determine vendor specific programming interface
compatibility. Software can rely on vendor specific register behavior to be
compatible among vendor CODECs of the same class.
00h - Field not implemented
01h-1Fh - Vendor specific compatibility class code
Equals Vendor ID2(Reg 7Eh) bits D7 to D0
Revision ID: (RO)
This register specifies a device specific revision identifier. The value is
chosen by the vendor. Zero is an acceptable value. This field should be
viewed as a vendor defined extension to the CODEC ID. This number
changes with new CODEC stepping of the same CODEC ID.
Equals Major Rev bits (Reg 6Ch) bits D7 to D0.
8.4.2. PCI SVID (62h Page 01h)
Register 24h must be set to Page 01h to access this register.
Default: FFFFh
D15
PVI15
D7
PVI7
D14
PVI14
D6
PVI6
D13
PVI13
D5
PVI5
D12
PVI12
D4
PVI4
D11
PVI11
D3
PVI3
D10
PVI10
D2
PVI2
D9
PVI9
D1
PVI1
D8
PVI8
D0
PVI0
Bit(s) Reset Value Name
Description
PCI Sub System Vendor ID:
This field provides the PCI Sub System Vendor ID of the Audio or Modem Sub
15-0
PVI15:PVI0 Assembly Vendor (i.e., CNR manufacturer, Motherboard Vendor). This is NOT the
CODEC vendor PCI Vendor ID, nor the AC '97 controller PCI Vendor ID.
If data is not available, returns FFFFh.
Note: This register is populated by the BIOS and does not reset on RESET#.
8.4.3. PCI SSID (64h Page 01h)
Register 24h must be set to Page 01h to access this register.
Default: FFFFh
D15
D14
D13
D12
D11
D10
D9
D8
PI15
PI14
PI13
PI12
PI11
PI10
PI9
PI8
D7
D6
D5
D4
D3
D2
D1
D0
PI7
PI6
PI5
PI4
PI3
PI2
PI1
PI0
IDT™
70
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06