AD1986ABSTZ datasheet(15/56 Pages) AD

15 / 56 page

AD1986A

Rev. 0 | Page 15 of 56

Table 29. ADI Specific Verb Support

Payload

Verb

G/S

VID

Description

BIt

Response

(32 Bits)

Description

Get

0xF04

N/A (0)

The AD1986A has only a single SDI line, thus set SDI verbs are

ignored and get SDI verbs always return a 0.

SDI Select

Set

0x704

N/A (0)

Processing

Coefficient

Get

C--0x

N/A (0)

Coefficient

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.

Set

4--x

Coefficient

N/A (0)

Coefficient

Index

Get

D--0x

N/A (0)

Coefficient

Index

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

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.

Set

5--0x

Coefficient Index

N/A (0)

Processing

State

Get

0xF03

N/A (0)

Processing

State

Processing states supported by the AD1986 Digital EQ:

Value

Processing

(EQM Bit [Inversed])

Symmetry (SYM Bit)

0x00

Off

0x01

Benign

0x02

Benign

0x80

Off

0x81

Benign

Off

0x82

Benign

Off

Set

0x703

Processing State

N/A (0)

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.

Table 30. Surround DAC Audio Output

NID

Name

TID

Type

Description

0x04

Surround DAC Audio Output

0x0

Audio Output

Designates the surround channel DACs.

Table 31. ADI Specific Verb Support

Payload

Verb

G/S

VID

Description

Bit

Response

(32 Bits)

Description

SDI

Select

Get

0xF04

N/A (0)

The AD1986 has a only single SDI line, thus set SDI verbs are ignored

and get SDI verbs always return a 0.

Set

0x704x

N/A (0)

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