WM8850 datasheet(105/223 Pages) WOLFSON

105 / 223 page

Pre-Production

WM8850

PP, April 2011, Rev 3.2

105

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

0Eh

0Fh

10h

11h

12h

13h

14h

15h

16h

17h

S/PDIF TX 1 AUDIO OUTPUT CONVERTER WIDGET (NID = 04H)

STREAM FORMAT VERB

Verb ID

Payload [15:0]

Response[31:0]

Get

0000h

Bits [31:0] in the table below

Set

Bits [15:0] in the table below

00000000h

Bit

Bitfield Name

Default

Description

[31:16]

Rsvd

0000h

Reserved

[15]

Type

Used to set the format of the stream:

0 = PCM

1 = Non-PCM (i.e. AC3 or Software Formatted S/PDIF)

[14]

Base

Used to set the base rate frequency:

0h = 48 kHz

1h = 44.1 kHz

[13:11]

Mult

Used to set the base rate multiplication factor:

0h = x1 (48kHz, 44.1kHz or less)

1h = x2 (96kHz, 88.2kHz, 32kHz)

2h = Reserved

3h = x4 (192kHz, 176.4kHz)

4h-7h = Reserved

[10:8]

Div

Used to set the base rate division factor:

0h = divide by 1 (48kHz, 44.1kHz)

1h =Reserved

2h = divide by 3 (32kHz)

3h-7h = Reserved

[7]

Rsvd

Reserved

[6:4]

Bits

Bits per Sample:

0h = Reserved

1h = 16 bits

2h = 20 bits

3h = 24 bits

4h = 32 bits (Software Formatted or Float 32)

5h-7h = Reserved

[3:0]

Chan

Number of Channels in each frame of the stream:

0h = 1 channel

1h = 2 channels

2h-Fh = reserved

Notes:

When the internal path (of ADC1 or MIC1 or MIC2) to S/PDIF TX 1 is active, Mult, Base & Div become read only and are

programmed by the WM8850 to match the sourced node settings.

When Software Formatted S/PDIF is selected, and the S/PDIF TX 1 is sourcing the HDA Link, the S/PDIF output is

driven low until stream ID is assigned.

WM8850 Datasheet(PDF) 105 Page - Wolfson Microelectronics plc

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