ES9039Q2M datasheet(89/107 Pages) ESS

89 / 107 page

VERSION 0.2.2

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

ES9039Q2M Product Datasheet

Bits

[7]

[6:2]

[1]

[0]

Default

1'b0

5'b00000

1'b0

Bits

Mnemonic

Description

[7]

SPDIF_LOAD_USER_BITS

Selects whether the S/PDIF Channel Status or User Data bits

are available to readback from the register interface.

Subframes A and B must have the same user data bits for

readback.

• 1'b0: Channel Status bits on the register interface (default)

• 1'b1: User Data bits on the register interface

[6:2]

RESERVED

N/A

[1]

PROG_COEFF_WE

Enables writing to the programmable coefficient RAM.

• 1'b0: Disables write signal to the coefficient RAM (default).

• 1'b1: Enables write signal to the coefficient RAM.

[0]

PROG_COEFF_EN

Enables the custom oversampling filter coefficients.

• 1'b0: Uses a built-in filter selected by filter_shape (default).

• 1'b1: Uses the coefficients programmed via

prog_coeff_data.

Bits

[7:5]

[4:0]

Default

3'b000

5'd0

Bits

Mnemonic

Description

[7:5]

RESERVED

N/A

[4:0]

SPDIF_DATA_SEL

Selects the byte of the S/PDIF payload in register 251

spdif_payload_read

• 24 bytes total

Bits

[7]

[6:0]

Default

1'b0

7'd0

Bits

Mnemonic

Description

[7]

PROG_COEFF_STAGE

Selects which stage of the filter to write.

• 1'b0: Selects the 2x stage of the oversampling filter

(default).

• 1'b1: Selects the 4x stage of the oversampling filter.

[6:0]

PROG_COEFF_ADDR

Selects the coefficient address when writing custom coefficients

for the oversampling filter.

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