WM8850 datasheet(113/223 Pages) WOLFSON

113 / 223 page

Pre-Production

WM8850

PP, April 2011, Rev 3.2

113

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 RX AUDIO INPUT CONVERTER WIDGET (NID = 05H)

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:

0 = 48 kHz

1 = 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 SRC1 is disabled, registers Base, Mult, and Div are read only, and are determined by the recovered S/PDIF rate.

When SRC1 is enabled, registers Base, Mult, and Div have read-write access, and are used to program the sample rate

for the link and for the output side of SRC1.

When Software Formatted S/PDIF is selected, SRC1 is automatically bypassed.

WM8850 Datasheet(PDF) 113 Page - Wolfson Microelectronics plc

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