CS4215 datasheet(23/52 Pages) CIRRUS

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Data Time Slot 8, Input Setting

MA3

MA2

MA1

MA0

RG3

RG2

RG1

RG0

11110000

Reset (R)

BIT

NAME

VALUE

FUNCTION

RG3-0

Right Channel Input

Gain Setting

0 0 0 0

R 1.5dB gain steps. RG3 is the MSB.

0 = no gain, 1111 = 22.5dB gain.

MA3-0

Monitor Path

Attenuation

1 1 1 1

R 6dB attenuation steps. MA3 is the MSB.

0 = no attenuation, 1111 = mute.

BIT

NAME

VALUE

FUNCTION

LG3-0

Left Channel Input

Gain Setting

0 0 0 0

R 1.5dB gain steps. LG3 is the MSB.

0 = no gain, 1111 = 22.5dB gain.

Input Select

R Line level inputs (LINL, LINR).

Microphone level inputs (MINL, MINR).

OVR

Overrange

R When read as 1, this bit indicates that an input over-

range condition has occurred. The bit remains set

until cleared by writing 0 into the register. Writing

a 1 enables the overrange detection. The bit will

remain 0 until an over-range occurs. Serial port

clear has priority over internal settings.

PIO1-0

Parallel I/O

1 1

R Parallel input/output bits.

Data Time Slot 7, Input Setting

PIO1

PIO0

OVR

LG3

LG2

LG1

LG0

11000000

Reset (R)

Data Time Slot 6, Output Setting

ADI

RO5

RO4

RO3

RO2

RO1

RO0

10111111

Reset (R)

BIT

NAME

VALUE

FUNCTION

RO5-0

Right Channel

Output Attenuation

Setting

1 1 1 1 1 1

R 1.5dB attenuation steps. RO5 is the MSB.

0 = no attenuation. 111111 = -94.5dB

Not used in mono modes.

Speaker Enable

R Speaker off (muted).

Speaker on.

ADI

A/D Data Invalid

A/D data valid.

A/D data invalid. Busy in calibration.

CS4215

DS76F2

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