ADAV4601 datasheet(48/60 Pages) AD

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ADAV4601

Rev. B | Page 48 of 60

MAIN CONTROL REGISTERS

DETAILED REGISTER DESCRIPTIONS

Address 0x0000 Initialization Control Register (Default: 0x0080)

Table 45.

Bit No.

Bit Name

Description

Default

Bits[15:13]

Reserved

Always write as 0 if writing to this register.

000

Bit[12]

Slew mute

When set to 1, all slew parameters ramp to zero. It is recommended to set this

bit to 1 prior to downloading a new program to reduce any risk of pops or clicks

on the output.

0b = unmuted

1b = muted

Bit[11]

Reserved

Always write as 0 if writing to this register.

Bits[10:9]

MCLKI frequency select

Used to select the MCLKI pin frequency.

00b = 512 × frequency sample (FS) (24.576 MHz)

01b = 256 × FS (12.288 MHz)

10b = 128 × FS (6.144 MHz)

11b = 64 × FS (3.072 MHz)

Bits[8:7]

SRC2 Channel A input select

Used to select the source for SRC2 Channel A.

00b = SDIN0

01b = SDIN1

10b = SDIN2

11b = SDIN3

Bits[6:5]

SRC1 input select

Used to select the source for SRC1.

00b = SDIN0

01b = SDIN1

10b = SDIN2

11b = SDIN3

Bit[4]

SRC2 Channel A enable

Used to enable SRC2 Channel A.

0b = disabled

1b = enabled

Bit[3]

SRC1 enable

Used to enable SRC1 Channel A.

0b = disabled

1b = enabled

Bit[2]

GSB enable

When set to 1, the ADAV4601 enters standby mode.

0b = disable standby or not in standby

1b = enable standby or not in standby

Bit[1]

Audio processor enable

Set to 1 to enable the audio processor.

0b = disabled

1b = enabled

Bit[0]

GPU

Globally powers up all parts of the device. If read back, it indicates the status of

the global power-up.

0b = use power management register

1b = global power-up

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