ES9016 datasheet(15/38 Pages) ESS

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March 26, 2021

3.2

ES9016K2M Datasheet

ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-

8800 • www.esstech.com

8 bit, Read-Write Register, Default = 0x10

Bits

[7]

[6]

[5]

[4]

[3]

[2]

[1]

[0]

Mnemonic

reserved

gpio1_cfg

Default

Bit

Mnemonic

Description

[7:4]

reserved

[3:0]

gpio1_cfg

Set GPIO 1 configuration

Default to 4’d0 (Automute Status).

See GPIO Configuration Table below for meaning of all settings.

GPIO Configuration Table

Setting

Direction

GPIO Function

4'd0

Output

Automute status (active high)

– asserted when Automute condition is met

4'd1

Output

DPLL Lock status (active high)

– asserted when DPLL is in lock

4'd2

Output

Minimum Volume (active high)

asserted when volume of both the left and right channels has ramped to its

minimum value (

–127.5dB).

4'd3

Output

MCLK

4'd4

Output

DPLL Lock interrupt (active high)

- asserted when DPLL Lock status changes state

- reading register 64 clears the interrupt

4'd5

Output

Automute Interrupt (active high)

- asserted when Automute status changes state

- reading register 64 clears the interrupt

4'd6

Output

DPLL Lock or Automute interrupt (active high)

- asserted when DPLL Lock or Automute status changes state

- reading register 64 clears the interrupt

4'd7

Output

Output low

4'd8

Input

Use as input pin - pin status can be read from register 65.

4'd9

Input

Input Selection - uses the GPIO as an input select based on register 21

4'd15

Output

Output high

8 bit, Read-Write Register, Default = 0x22

Bits

[7]

[6]

[5]

[4]

[3]

[2]

[1]

[0]

Mnemonic

Reserved for Revision V

Default

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