ad1985jstz-reel Analog Devices, Inc., ad1985jstz-reel Datasheet - Page 42

• Manufacturer Part Number: ad1985jstz-reel
• Description: Ac ?97 Soundmax Codec
• Manufacturer: Analog Devices, Inc.

Reg Num
0x60
Reg Num
0x64
Reg Num
0x62
AD1985
Codec Class/Revision Register (Index 0x60, Page 01)
New register added for AC ’97 2.3.
RV[7:0]
CL[4:0]
X
PCI Subsystem Vendor ID Register (Index 0x62, Page 01)
New register added for AC ’97 2.3.
PVI[15:0]
PCI Subsystem Device ID Register (Index 0x64, Page 01)
New register added for AC ’97 2.3.
PI[15:0]
Revision ID. (Read-only.)
The initial production version of the AD1985 reports three. This will increment with each stepping/revision of the codec chip.
Codec Compatibility Class. (Read-only.) The AD1985 will return 0x00 from these bits.
Reserved.
Name
PCI SVID PVI15 PVI14 PVI13 PVI12 PVI11 PVI10 PVI9 PVI8 PVI7 PVI6 PVI5 PVI4 PVI3 PVI2 PVI1 PVI0 N/A
Name
Codec Class/Rev
Name
PCI SID
PCI Subsystem Vendor ID. (Read/write.)
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, nor the AC ’97 controller PCI vendor ID. If data is not
written by BIOS or other applications, it will return 0xFFFF.
PCI Vendor ID. (Read/write.)
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, nor the AC ’97 controller PCI ID. Information in this field must be available for AC ’97
controller reads when codec ready is asserted in AC link. If data is not written by BIOS or other applications, it will return
0xFFFF.
D15
D15
PI15
D14
D15 D14 D13 D12 D11 D10 D9
X
D14
PI14
D13
X
D13
PI13
D12
X
D12
PI12
CL4
D11
D11
PI11
CL3
Rev. A | Page 42 of 48
D10
D10
PI10
CL2
D9
D9
PI9
CL1 CL0 RV7 RV6 RV5 RV4 RV3 RV2 RV1 RV0 N/A
D8
D8
PI8
D8
D7
D7
PI7
D7
D6
D6
PI6 PI5 PI4 PI3 PI2 PI1 PI0 N/A
D6
D5
D5
D5
D4
D4
D4
D3
D3
D3
D2
D2
D2
D1
D1
D1
D0
D0
D0
Default
Default
Default