WM5102 datasheet(137/334 Pages) WOLFSON

137 / 334 page

Production Data

WM5102

PD, June 2014, Rev 4.2

137

AIF DIGITAL PULL-UP AND PULL-DOWN

The WM5102 provides integrated pull-up and pull-down resistors on each of the AIFnLRCLK,

AIFnBCLK and AIFnRXDAT pins. This provides a flexible capability for interfacing with other devices.

Each of the pull-up and pull-down resistors can be configured independently using the register bits

described in Table 44, Table 45 and Table 46. Note that if the Pull-up and Pull-down are both enabled

for any pin, then the pull-up and pull-down will be disabled.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R3107

(0C23h)

Misc Pad

Ctrl 4

AIF1LRCLK_PU

AIF1LRCLK Pull-Up Control

0 = Disabled

1 = Enabled

AIF1LRCLK_PD

AIF1LRCLK Pull-Down Control

0 = Disabled

1 = Enabled

AIF1BCLK_PU

AIF1BCLK Pull-Up Control

0 = Disabled

1 = Enabled

AIF1BCLK_PD

AIF1BCLK Pull-Down Control

0 = Disabled

1 = Enabled

AIF1RXDAT_PU

AIF1RXDAT Pull-Up Control

0 = Disabled

1 = Enabled

AIF1RXDAT_PD

AIF1RXDAT Pull-Down Control

0 = Disabled

1 = Enabled

Table 44 AIF1 Digital Pull-Up and Pull-Down Control

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R3108

(0C24h)

Misc Pad

Ctrl 5

AIF2LRCLK_PU

AIF2LRCLK Pull-Up Control

0 = Disabled

1 = Enabled

AIF2LRCLK_PD

AIF2LRCLK Pull-Down Control

0 = Disabled

1 = Enabled

AIF2BCLK_PU

AIF2BCLK Pull-Up Control

0 = Disabled

1 = Enabled

AIF2BCLK_PD

AIF2BCLK Pull-Down Control

0 = Disabled

1 = Enabled

AIF2RXDAT_PU

AIF2RXDAT Pull-Up Control

0 = Disabled

1 = Enabled

AIF2RXDAT_PD

AIF2RXDAT Pull-Down Control

0 = Disabled

1 = Enabled

Table 45 AIF2 Digital Pull-Up and Pull-Down Control

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