WM8994 datasheet(136/359 Pages) WOLFSON

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WM8994 Datasheet(PDF) 136 Page - Wolfson Microelectronics plc

Part #	WM8994

Description	Multi-Channel Audio Hub CODEC for Smartphones

PDF	359 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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136 / 359 page

WM8994

Production Data

PD, April 2012, Rev 4.4

136

GPIO / INTERRUPT OUTPUTS FROM DC SERVO

When using the DC Servo Start-Up or DAC Write modes, the DCS_CAL_COMPLETE register

provides readback of the status of the DC offset correction. This can be read from register R88 as

described in Table 71.

The DCS_CAL_COMPLETE bits can also be used as inputs to the Interrupt control circuit and used

to trigger an Interrupt event - see “Interrupts”.

The DCS_CAL_COMPLETE bits can also be used as inputs to the GPIO function and used to

generate external logic signals indicating the DC Servo status. See “General Purpose Input/Output”

for details of how to configure a GPIO pin to output the DC Servo status.

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