WM8758B datasheet(71/90 Pages) WOLFSON

71 / 90 page

Production Data

WM8758B

PD, Rev 4.4, January 2012

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

GPIO

Control

2:0

GPIO1SEL

000

CSB/GPIO1 pin function select:

000 = input (CSB / Jack detection:

depending on MODE setting)

001 = reserved

010 = Temp ok

011 = Amute active

100 = PLL clk output

101 = PLL lock

110 = logic 0

111 = logic 1

GPIO1POL

GPIO1 Polarity invert

0 = Non inverted

1 = Inverted

5:4

OPCLKDIV

PLL Output clock division ratio

00 = divide by 1

01 = divide by 2

10 = divide by 3

11 = divide by 4

GPIO1GPD

GPIO1 Internal pull-down enable:

0 = Internal pull-down disabled

1 = Internal pull-down enabled

GPIO1GPU

GPIO1 Internal pull-up enable:

0 = Internal pull-up disabled

1 = Internal pull-up enabled

GPIO1GP

GPIO1 Open drain enable

0 = Open drain disabled

1 = Open drain enabled

Table 50 CSB/GPIO Control

Note:

If MODE is set to 3 wire mode, CSB/GPIO1 is used as CSB input irrespective of the

GPIO1SEL[2:0] bits.

For further details of the jack detect operation see the OUTPUT SWITCHING section.

WM8758B Datasheet(PDF) 71 Page - Wolfson Microelectronics plc

WM8758B Datasheet(HTML) 71 Page - Wolfson Microelectronics plc

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