WM8994ECSSLASHR datasheet(190/363 Pages) CIRRUS

190 / 363 page

WM8994

190

Rev 4.6

DIGITAL PULL-UP AND PULL-DOWN

The WM8994 provides integrated pull-up and pull-down resistors on each of the DACDAT1, LRCLK1

and BCLK1 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 104. 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

R1824

(0720h)

Pull Control

(1)

DACDAT1_PU

DACDAT1 Pull-up enable

0 = Disabled

1 = Enabled

DACDAT1_PD

DACDAT1 Pull-down enable

0 = Disabled

1 = Enabled

DACLRCLK1_

LRCLK1 Pull-up enable

0 = Disabled

1 = Enabled

DACLRCLK1_

LRCLK1 Pull-down enable

0 = Disabled

1 = Enabled

BCLK1_PU

BCLK1 Pull-up enable

0 = Disabled

1 = Enabled

BCLK1_PD

BCLK1 Pull-down enable

0 = Disabled

1 = Enabled

Table 104 Digital Pull-Up and Pull-Down Control

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