WM8850 datasheet(80/223 Pages) WOLFSON

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WM8850

Pre-Production

PP, April 2011, Rev 3.2

NID

NODE

NAME

UNSOLICITED RESPONSE

BIT

FLAG NAME

DESCRIPTION

04h S/PDIF TX 1 [31:26]

Tag

A software programmable tag value. The default value is equal to

the Node ID. Other values can be configured using the Unsolicited

Response Verb.

[25:3]

Rsvd

Reserved

[2]

EF_STREAM_ERR

Indicates that an error has occurred in the transfer of data from the

HDA Link to the Stream Manager.

Assertion of the flag triggers an Unsolicited Response.

The flag rescinds at the end of the present HDA frame.

[1:0]

SF_SRC2

Indicates that the lock status of SRC2 has changed, and reports

the new lock status.

A change in status triggers an Unsolicited Response.

The status value is also accessible through the Get SRC Verb.

05h

S/PDIF Rx

[31:26]

Tag

A software programmable tag value. The default value is equal to

the Node ID. Other values can be configured using the Unsolicited

Response Verb.

[25:11]

Rsvd

Reserved

[10]

EF_STREAM_DROP

Indicates that the stream associated with the S/PDIF Rx node has

been dropped due to the bandwidth of the SDI line being

oversubscribed.

Assertion of the flag triggers an Unsolicited Response.

The flag is cleared when the Stream ID is written to.

[9]

EF_SAMPLE_DROP

Indicates that additional samples (due to the recovered S/PDIF

rate being faster than the nominal rate) have been dropped due to

the bandwidth of the SDI line being oversubscribed.

Assertion of the flag triggers an Unsolicited Response.

The flag is cleared at the end of the present HDA frame.

[8:7]

SF_SRC1

Indicates that the lock status of SRC1 has changed, and reports

the new lock status.

A change in status triggers an Unsolicited Response.

The status value is also accessible through the Get SRC Verb.

[6]

UF_CSUD_DC

Indicates that there has been a change to one of the bits in the

Digital Converter register.

A change in status triggers an Unsolicited Response.

The status values are accessible through the Get Digital Converter

Verb.

[5:4]

SF_V_DC

Indicates that the validity bit has changed value.

A change in status triggers an Unsolicited Response.

The status value is also accessible through the Get Digital

Converter Verb.

WM8850 Datasheet(PDF) 80 Page - Wolfson Microelectronics plc

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