WM8352 datasheet(224/336 Pages) WOLFSON

224 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

224

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

mask.

SPI_4WIRE

Selects 3-wire or 4-wire SPI mode

0 = 3-wire mode using bi-directional SDATA pin

1 = 4 wire mode using SDOUT (GPIO6)

Note: SPI_3WIRE must be set for this to take

effect.

Protected by security key. Default held in metal

mask.

SPI_3WIRE

Selects 2- or 3-/4-wire mode.

0 = 2-wire mode

1 = 3/4 wire mode

Protected by security key. Default held in metal

mask.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R8 (08h)

Power mgmt

(1)

15:14

CODEC_ISEL[1:0]

CODEC Analogue current level select

00 = x 1.5

01 = x 1.0

10 = x 0.75

11 = x 0.5

VBUF_ENA

Forces ON the tie-off amplifiers

0 = disabled

1 = enabled

OUTPUT_DRAIN_ENA

Enables a drain on the outputs allowing the

amplifiers to shutdown more quickly.

0 = Shutdown as normal

1 = Sink current from an external capacitor,

allowing faster shutdown.

MIC_DET_ENA

Enable MIC detect:

0 = disabled

1 = enabled

BIAS_ENA

Enables bias to analogue audio CODEC

circuitry

0 = disabled

1 = enabled

MICB_ENA

Microphone bias enable

0 = OFF (high impedance output)

1 = ON

VMID_ENA

Enables VMID resistor string

0 = disabled

1 = enabled

1:0

VMID[1:0]

Resistor selection for VMID potential divider

00 = off

01 = Vmid comes from 300kΩ R-string

10 = Vmid comes from 50kΩ R-string

11 = Vmid comes from 5kΩ R-string

WM8352 Datasheet(PDF) 224 Page - Wolfson Microelectronics plc

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