AD1986A Просмотр технического описания (PDF) - Analog Devices

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AD1986A

AC ’97 and HD Audio SoundMAX Codec

Analog Devices 

AD1986A

Table 43. Microphone Selector

NID Name

0x0F Microphone Selector

TID Type

0x3 Audio Selector

Description

Chooses the microphone inputs between the MIC_1/2 and

C/LFE pins. Contains the microphone gain boost amplifier.

Table 44. Line In Selector

NID Name

0x10 Line In Selector

TID Type

0x3 Audio Selector

Description

Chooses the line in inputs between the line in, surround and

MIC_1/2 pins.

Table 45. MIC_1/2 Swap

NID Name

0x11 MIC_1/2 Swap

TID Type

0x3 Audio Selector

Description

Swaps the left/right association of MIC_1/2 on the input pins

only. Allows up mix, spreading one microphone to both left

and right output channels.

Table 46. ADI Specific Verb Support

Payload

Verb

Processing

Coefficient

Coefficient

Index

Processing

State

G/S VID Description

Get C--0x N/A (0)

Set 4--0x N/A (0)

Get D--0x N/A (0)

Set 5--0x N/A (0)

Get 0xF03 N/A (0)

Response

BIt (32 bits)

N/A (0)

16 N/A (0)

N/A (0)

8 N/A (0)

Processing

State

Set 0x703 Processing State 8 N/A (0)

Description

Not supported. Writes have no effect, reads always return a 0.

Not supported. Writes have no effect, reads always return a 0.

Controls the up-mix function of the MIC_1/2 swap widget.

Up-Mix will spread the selected left channel (see the left/right swap

feature of the enable EAPD/BTL verb description) to both the left

and right channel outputs of this stereo widget.

Value

Processing State

Up-Mix Spreading

0x00

Off

Off

0x01

Benign

On

0x02

Benign

On

Note that the AD1986 considers both on and benign states as

benign. If the on state is set, the AD1986 will set and return the

benign state.

Table 47. Record Selector

NID Name

0x12 Record Selector

TID Type

0x3 Audio Selector

Description

Chooses the analog source to the record ADCs.

Table 48. Microphone MixAmp

NID Name

0x13 Microphone MixAmp

TID Type

0x3 Audio Selector

Description

The microphone amplifier input to the analog mixer.

Table 49. Phone MixAmp

NID Name

0x14 Phone MixAmp

Table 50. CD MixAmp

NID Name

0x15 CD MixAmp

TID Type

0x3 Audio Selector

Description

The phone amplifier input to the analog mixer.

TID Type

0x3 Audio Selector

Description

The CD amplifier input to the analog mixer.

Rev. 0 | Page 17 of 56

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