ES9842PRO datasheet(43/167 Pages) ESS

43 / 167 page

VERSION 0.5

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

ES9842 PRO Product Datasheet

Digital Audio Output Port

Pins are configured in Master (AUX Output) or Slave (Aux Input) modes through GPIO Configurations.

PCM Pin Connections

See Audio Interface Timing (I2S) for timing criteria. Can select GPIO 5,6 for the datapath.

Pin Name

Function

Description

GPIO1

I2S BCLK

I2S clock (Master or Slave)

GPIO2

I2S WS

I2S WS (Master or Slave)

GPIO3

I2S DATA

I2S DATA out (selectable for 2 channels)

GPIO4

I2S DATA

I2S DATA out (selectable for 2 channels)

Table 14 - PCM Pin Connections

TDM Pin Connections

See Registers 7-15 for configuration, can select GPIO 4-6 for the datapath.

Pin Name

Function

Description

GPIO1

TDM BCK

TDM clock (Master or Slave)

GPIO2

TDM WS

TDM WS (Master or Slave)

GPIO3

TDM DATA

TDM DATA out (default)

Table 15 - TDM Pin Connections

DSD Pin Connections

DSD requires 1 pin per ADC channel, any channel can be mapped to any of the GPIOs (GPIO3-6). See Registers 6,7,19 for

configuration.

Pin Name

Function

Description

GPIO1

DSD Clock

DSD Bit Clock (Master or Slave)

GPIO3

DSD DATA out

DSD data mapped to selected channel

(Channel 1 default)

GPIO4

DSD DATA out

DSD data mapped to selected channel

(Channel 2 default)

GPIO5

DSD DATA out

DSD data mapped to selected channel

(Channel 3 default)

GPIO6

DSD DATA out

DSD data mapped to selected channel

(Channel 4 default)

Table 16 - DSD Pin Connections

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