ALC888SDD-GR View Datasheet(PDF) - Realtek Semiconductor

Part Name

Description

Manufacturer

ALC888SDD-GR

7.1+2 CHANNEL HIGH DEFINITION AUDIO CODEC WITH TWO INDEPENDENT S/PDIF-OUT

Realtek Semiconductor 

ALC888S & ALC888SDD

Datasheet

8.12. Verb – Set Amplifier Gain (Verb ID=3h)

This verb is used to set amplifier gain/attenuation in each widget.

Table 46. Verb – Set Amplifier Gain (Verb ID=3h)

Set Command Format

Codec Response Format

Bit [31:28] Bit [27:20] Bit [19:8]

Payload Bit [7:0]

Response [31:0]

CAd=X Node ID=Xh Verb ID=3h

‘Set’ payload [7:0]

0’s for all nodes

‘Set’ Payload in Command Bit[15:0]

Bit

Description

15

Set Output Amp.

1: Indicates output amplifier gain will be set

14

Set Input Amp.

1: Indicates input amplifier gain will be set

13

Set Left Amp.

1: Indicates left amplifier gain will be set

12

Set Right Amp.

1: Indicates right amplifier gain will be set

11:8

Index Offset (for input amplifiers on Sum widgets and Selector Widgets).

5 bits index offset in connection list is used to select which input gain will be set on a Sum or a Selector

widget. The index is ignored if the node is not a Sum or a Selector widget, or the ‘Set Input Amp’ bit is

not set.

7

Mute.

0: Unmute

1: Mute (-∞gain)

6:0

Gain[6:0].

A 7-bit step value specifying the amplifier gain.

7.1+2 Channel High Definition Audio Codec

44

w/Two Independent S/PDIF-OUT

Track ID: JATR-1076-21 Rev. 1.2

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