AD1986A Analog Devices, AD1986A Datasheet - Page 15

• Manufacturer Part Number: AD1986A
• Description: HD Audio SoundMAX Codec
• Manufacturer: Analog Devices

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Table 29. ADI Specific Verb Support
Verb
SDI Select
Processing
Coefficient
Coefficient
Index
Processing
State
Table 30. Surround DAC Audio Output
NID
0x04
Table 31. ADI Specific Verb Support
Verb
SDI
Select
Name
Surround DAC Audio Output
G/S
Get
Set
G/S
Get
Set
Get
Set
Get
Set
Get
Set
VID
0xF04
0x704x
VID
0xF04
0x704
C--0x
4--x
D--0x
5--0x
0xF03
0x703
Description
N/A (0)
N/A (0)
Description
N/A (0)
N/A (0)
N/A (0)
Coefficient
N/A (0)
Coefficient Index
N/A (0)
Processing State
Payload
Payload
Bit
8
Response
(32 Bits)
N/A (0)
N/A (0)
BIt
8
16
8
8
TID
0x0
Response
(32 Bits)
N/A (0)
N/A (0)
Coefficient
N/A (0)
Coefficient
Index
N/A (0)
Processing
State
N/A (0)
Type
Audio Output
Rev. 0 | Page 15 of 56
Description
The AD1986 has a only single SDI line, thus set SDI verbs are ignored
and get SDI verbs always return a 0.
Description
The AD1986A has only a single SDI line, thus set SDI verbs are
ignored and get SDI verbs always return a 0.
Get/set the processing coefficient at the current coefficient index.
Index can be set by the “set coefficient index” verb.
The coefficient indexes and data are identical to the AC’ 97 Registers
0x60 and 0x62 definitions (see the EQ Control Register (Register
0X60) and EQ Data Register (Register 0X62) sections).
Note that the AD1986A does not automatically increment the
coefficient index. The index must be written for each coefficient that
is to be loaded or read.
Get/set the processing coefficient index for the get/set Processing
Coefficient verb. The coefficient indexes and data are identical to the
AC’ 97 register 0x60 and 0x62 definitions. (see the EQ Control
Register (Register 0X60) and EQ Data Register (Register 0X62)
sections). Note that the AD1986A does not automatically increment
the coefficient index. The index must be written for each coefficient
that is to be loaded or read.
Processing states supported by the AD1986 Digital EQ:
Value
0x00
0x01
0x02
0x80
0x81
0x82
Note that the AD1986A considers states on and benign as both
benign. If the on state is set, the AD1986 will set and return the
benign state. States 0x00 or 0x80 must be set when loading
coefficients. Setting state 0x80 will load coefficients with SYM off.
Default state 0x00 is SYM on. When symmetry is on, only ½ of the
coefficients (one channel) need to be loaded.
Description
Designates the surround channel DACs.
Processing
(EQM Bit [Inversed])
Off
Benign
Benign
Off
Benign
Benign
Symmetry (SYM Bit)
On
On
On
Off
Off
Off
AD1986A