WM8750CLSEFLSLASHR datasheet(44/65 Pages) WOLFSON

44 / 65 page

WM8750L

Production Data

PD, Rev 4.4, August 2012

AUDIO INTERFACE CONTROL

The register bits controlling audio format, word length and master / slave mode are summarised in

Table 34. MS selects audio interface operation in master or slave mode. In Master mode BCLK,

ADCLRC and DACLRC are outputs. The frequency of ADCLRC and DACLRC is set by the sample

rate control bits SR[4:0] and USB. In Slave mode BCLK, ADCLRC and DACLRC are inputs.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R7 (07h)

Digital Audio

Interface

Format

BCLKINV

BCLK invert bit (for master and slave

modes)

0 = BCLK not inverted

1 = BCLK inverted

Master / Slave Mode Control

1 = Enable Master Mode

0 = Enable Slave Mode

LRSWAP

Left/Right channel swap

1 = swap left and right DAC data in

audio interface

0 = output left and right data as normal

LRP

right, left and i2s modes – LRCLK

polarity

1 = invert LRCLK polarity

0 = normal LRCLK polarity

DSP Mode – mode A/B select

1 = MSB is available on 1st BCLK rising

edge after LRC rising edge (mode B)

0 = MSB is available on 2nd BCLK rising

edge after LRC rising edge (mode A)

3:2

WL[1:0]

Audio Data Word Length

11 = 32 bits (see Note)

10 = 24 bits

01 = 20 bits

00 = 16 bits

1:0

FORMAT[1:0]

Audio Data Format Select

11 = DSP Mode

10 = I

2S Format

01 = Left justified

00 = Right justified

Table 34 Audio Data Format Control

Notes:

The BCLK invert function (BCLKINV) is not supported by the ADC output in Master or Slave

modes. Inverted BCLK operation (BCLKINV=1) is only supported for DAC-only modes.

In Right-Justified mode, 32-bit word length is not supported

In Right Justified mode, 16-bit and 20-bit word length is only supported if DCVDD ≤ 1.5V

WM8750CLSEFL/R Datasheet(PDF) 44 Page - Wolfson Microelectronics plc

WM8750CLSEFL/R Datasheet(HTML) 44 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Datasheet Download

Link URL