AD1983

Rev. 0 | Page 9 of 16

HD AUDIO CODEC INFORMATION

Table 6. Widget List and Descriptions

NID

(Hex)

Name

Type ID

Type

Description

00

ROOT

x

Root

Device identification.

01

FUNCTION

x

Function

Designates this device as an audio codec.

02

S/PDIF

0

Audio output

Designates the codec S/PDIF digital stream output interface.

03

Front DAC

0

Audio output

Designates the playback channel digital/audio converters.

04

Record ADC

1

Audio input

Designates the record channel audio/digital converters.

05

Port-D (Line Out)

4

Pin complex

Port-D pin drivers. Typically used as rear panel line output.

06

Port-A (Headphone Out)

4

Pin complex

Port-A pin drivers. Typically used as front panel headphone output.

07

MONO_OUT

4

Pin complex

Monaural output pin driver. Typically used to drive an internal

speaker or as a microphone selector on a telephony system.

08

Port-B (Front Microphone)

4

Pin complex

Port-B pin drivers. Typically used as front panel microphone.

09

Port-C (Line In)

4

Pin complex

Port-C pin drivers. Typically used as rear panel line input.

0A

S/PDIF_OUT

4

Pin complex

S/PDIF output digital interface.

0B

Mono Selector

3

Audio selector

Chooses the signals that drive the mono output mixer and pin.

0C

Microphone Selector/Boost

3

Audio mixer

Allows microphone source port selection and boost preamplifier

setting.

0D

Line In Selector

3

Audio selector

Allows line in source port selection.

0E

Analog Mixer

2

Audio mixer

Selectively mixes analog input signals into a single signal.

0F

Mono Mixer

2

Audio mixer

Stereo-to-Mono mixer.

10

Digital PC Beep

7

Beep generator

Digital PC beep generator.

11

Front Mix Amp

3

Audio selector

Individual gain control for the DAC (front) input to the analog mixer.

12

Port-B Mix Amp

3

Audio selector

Individual gain control for the Port-B (front microphone) input to the

analog mixer.

13

Port-C Mix Amp

3

Audio selector

Individual gain control for the Port-C (line in) input to the analog

mixer.

14

Record Selector

3

Audio selector

Chooses the signal that is recorded by the record ADC. Also contains

the record gain controls.

15

Analog Power-Down

5

Power widget

Controls power on analog mixer and associated amplifiers. This

controls the power of all widgets in its connection list.

Table 7. Root and Function Node Parameters1

Type

Vendor ID

Revision ID

Sub Node

Count

Function Group

Type

Audio

F.G. Caps

GPIO Caps

NID (Hex)

Name

ID

Type

PID 002

PID 022

PID 042

PID 052

PID 082

PID 112

00

ROOT

X

Root

11D41983

00100400

00010001

01

FUNCTION

X

Function

00020014

00000001

00010C0C

40000002