AD1986 Analog Devices, AD1986 Datasheet - Page 43

• Manufacturer Part Number: AD1986
• Manufacturer: Analog Devices

Preliminary Technical Data
PCI SUBSYSTEM VENDOR ID REGISTER (REGISTER 0x62, PAGE 01)
This register is only reset by power-on. It is used by the BIOS to store configuration information (per AC ’97 Revision 2.3 specification)
and must not be reset by soft or hardware resets.
Reg
0x621
Table 68.
Register
PVI [15:0]
PCI Sub
System
Vendor ID
PCI SUBSYSTEM DEVICE ID REGISTER (REGISTER 0x64, PAGE 01)
This register is only reset by power-on. It is used by the BIOS to store configuration information (per AC’97 v2.3 specification) and must
not be reset by soft or hardware resets.
Reg
0x641
Table 69.
Register
PI [15:0]
(PCI Vendor
ID)
FUNCTION SELECT REGISTER (REGISTER 0x66, PAGE 01)
This register is used to select which function (analog I/O pins), information and I/O (
The AD1986 associates FC =
with the new device pin-out and to separate LINE_OUT functions.
Reg
0x661
Name
PCI
SVID
Name
PCI SID
Name
Function
Select
Function
Optional per AC ‘97 specifications, should be implemented as read/write on AD1986.
This field provides the PCI subsystem vendor ID of the audio or modem subassembly vendor (i.e., CNR manufacturer,
motherboard vendor). This is NOT the CODEC vendor PCI vendor ID or the AC ’97 controller PCI vendor ID. If data is not
available it should return 0xFFFF.
Function
Optional per AC ‘97 specifications, should be implemented as read/write on the AD1986. This field provides the PCI
subsystem ID of the audio or modem subassembly (i.e., CNR model, motherboard SKU). This is NOT the CODEC vendor PCI
ID or the AC ’97 controller PCI ID. Information in this field must be available, because the AC ’97 controller reads when the
CODEC ready is asserted in the AC link. If data is not available it should return FFFFh.
D15
PVI15
D15
PI15
D14
PVI14
D15
x
D14
PI14
0x
0 with surround functions and FC =
D13
PVI13
D14
x
D13
PI13
D13
x
D12
PVI12
D12
PI12
D12
x
D11
PVI11
D11
PI11
D11
x
D10
PVI10
D10
PI10
Rev. 0 | Page 43 of 52
D10
x
D9
PVI9
D9
PI9
D9
x
0x0
PVI8
D8
1 with front functions. These are changed in the AD1986 to align
D8
PI8
D8
x
D7
PVI7
D7
PI7
D7
x
D6
PVI6
D6
PI6
0x
D6
x
6801), and sense (
D5
PVI5
PI5
D5
D5
x
D4
PVI4
D4
FC3
PI4
D4
D3
PVI3
D3
FC2
PI3
D3
0x
6A01) registers apply to it.
D2
PI2
D2
FC1
D2
PVI2
D1
PI1
D1
FC0
D1
PVI1
D0
PI0
D0
T/R
D0
PVI0
AD1986
Default
0xFFFF
Default
0x0000
Default
0xFFFF