ADAV4601 datasheet(49/60 Pages) AD

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ADAV4601

Rev. B | Page 49 of 60

Address 0x0004 Serial Port Control 1 Register (Default: 0x0000)

Table 46.

Bit No.

Bit Name

Description

Default

Bits[15:13]

Reserved

Always write as 0 if writing to this register.

000

Bits[12:11]

SRC2 serial mode

Used to select the format of the data for SRC2.

00b = I2S

01b = left-justified

10b = right-justified

11b = not applicable

Bits[10:9]

SRC2 word width

Used to specify the word width of the data.

00b = 24 bits

01b = 20 bits

10b = 16 bits

11b = not applicable

Bits[8:7]

SRC1 serial mode

Used to select the format of the data for SRC1.

00b = I2S

01b = left-justified

10b = right-justified

11b = not applicable

Bits[6:5]

SRC1 word width

Used to specify the word width of the data.

00b = 24 bits

01b = 20 bits

10b = 16 bits

11b = not applicable

Bit[4]

Sync master slave

Used to set master or slave mode for the synchronous input. In slave mode, LRCLK1 and BCLK1

are provided by another source. In master mode, the ADAV4601 provides LRCLK1 and BCLK1.

0b = slave

1b = master

Bits[3:2]

Sync serial mode

Used to select the format of the data for the inputs used by the synchronous serial input block.

00b = I2S

01b = left-justified

10b = right-justified

11b = not applicable

Bits[1:0]

Sync word width

Used to specify the word width of the data for the synchronous digital inputs.

00b = 24 bits

01b = 20 bits

10b = 16 bits

11b = not applicable

Address 0x0005 Analog Power Management 1 Register (Default: 0x8000)

Table 47.

Bit No.

Bit Name

Description

Default

Bit[15]

DAC standby disable

Set to 1 after reset, which means all DACs are in normal mode but are still powered down.

0b = DACs in low power mode

1b = DACs in normal mode

Bit[14]

Reserved

Always write as 0 if writing to this register.

Bit[13]

REF BUF

Provides the voltage reference for the analog core.

1b = block powered up

0b = block powered down

Bit[12]

Reserved

Always write as 0 if writing to this register.

Bit[11]

Reserved

Always write as 0 if writing to this register.

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