CS4207 datasheet(29/148 Pages) CIRRUS

29 / 148 page

DS880F4

CS4207

4.7

The CS4207 will perform a complete Power On Reset (POR) initialization if the voltage is cycled from off to

on from the VD pin of the device. All registers will be initialized to the default state. For device behavior due

to other system reset conditions or power state transitions events, see the table below.

Setting

Action with

Link Reset

Action with

“Double”Function

Group reset

Action with

“Single” Function

Group reset

Action across

D0/D3 state

transitions or link

BITCLK stopped

Unique codec physi-

cal address (SDI)

Requires codec initial-

ization sequence to

acquire new unique

address.

Persist across

“Double” FG reset.

Persist across

“Single” FG reset.

Persist across Dx

state transitions or

BITCLK stopped.

Converter Format;

Type, Base, Mult,

Div, Bits Chan fields

(verb ID = A00/2xx)

Persist across Link

Reset.

Settings are reset to

POR default value.

PS-SettingsReset set

to ‘1’b.

Persist across

“Single” FG reset.

Persist across Dx

state transitions or

BITCLK stopped.

Amplifier Gain/Mute

(verb ID = Bxx/3xx)

Index, Mute and Gain

settings persist across

Link Reset.

Settings are reset to

POR default value.

PS-SettingsReset set

to ‘1’b.

Index, Mute and Gain

settings persist across

“Single” FG reset.

Index, Mute and Gain

settings persist across

Dx state transitions or

BITCLK stopped.

Connection Select

Control

(verb ID = F01/701)

Persist across Link

Reset.

Settings are reset to

POR default value.

PS-SettingsReset set

to ‘1’b.

Persist across

“Single” FG reset.

Persist across Dx

state transitions or

BITCLK stopped.

Power States for the

function group and

individual widgets

(verb ID = F05/705)

Power State persist

across Link Reset.

Power State persist

across “Double” FG

reset.

Power State persist

across “Single” FG

reset.

Persist across BIT-

CLK stopped. PS-Act

and PS-Set will be

updated to the cur-

rent power state

across Dx state transi-

tions.

Converter Stream &

Channel settings

e.g. Stream number

and lowest Channel

number

(verb ID = F06/706)

Reset to default by

Link reset and does

not set PS-Setting-

sReset to ‘1’b.

Reset to default by

“Double” FG reset and

does not set PS-Set-

tingsReset to ‘1’b.

Reset to default by

“Single” FG reset and

does not set PS-Set-

tingsReset to ‘1’b.

Reset to default

across Dx state transi-

tions and does not set

PS-SettingsReset to

‘1’b.

Pin Widget Controls;

In/Out Enables, Vref

(verb ID = F07/707)

Persist across Link

Reset.

Settings are reset to

POR default value.

PS-SettingsReset set

to ‘1’b.

Persist across

“Single” FG reset.

Persist across Dx

state transitions or

BITCLK stopped.

Unsolicited

Response control;

Enable and Tag

(verb ID = F08/708)

Persist across Link

Reset.

Settings are reset to

POR default value.

PS-SettingsReset set

to ‘1’b.

Persist across

“Single” FG reset.

Persist across Dx

state transitions or

BITCLK stopped.

Table 1. Register Settings Across Reset Conditions

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