ES9039Q2M datasheet(20/107 Pages) ESS

20 / 107 page

VERSION 0.2.2

ES9039Q2M Product Datasheet

ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 • WWW.ESSTECH.COM

GPIO Software Configuration

Each GPIO from 1 to 8 has 14 configurable modes (mode 8 & 15 are reserved). The table below shows the available

configurations. See GPIO pin descriptions for Hardware and Software mode setups.

GPIO#_CFG

Function

Input /

Output

GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GPIO7 GPIO8

4’d0

Analog

Shutdown

Output

Shutdown

4’d1

Output 0

Output

Output 0

4’d2

Output 1

Output

Output 1

4’d3

Clocks

Output

CLKEN_1FS

CLK_BCK

CLK_DAC

CLK_IDAC

CLKEN_1FS

CLK_BCK

CLK_DAC

CLK_IDAC

4’d4

Interrupt

Output

OR of all interrupts

4’d5

Mute

Input

Mute all channels

4’d6

System Mode

Control

Input

See System mode control section

4’d7

SRC lock

status

Output

src_locked flag

4’d8

External DEM

Output

External DEM Output

Reserved

4’d9

PWM1 signal

Output

PWM1 signal

4’d10

PWM2 signal

Output

PWM2 signal

4’d11

PWM3 signal

Output

PWM3 signal

4’d12

Minimum

volume1

Output

vol_min flag

4’d13

Automute

status2

Output

dac_automute flag

4’d14

Soft ramp

done2

Output

dac_ss_ramp flag

4’d15

Reserved

Table 10 - GPIO Configuration Function

Can be bitwise ANDed, ORed, or a specifical channel output; based on the values of Registers 46-47[6:0].

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