TW6874 datasheet(64/92 Pages) RENESAS

Part #	TW6874

Description	Quad (SD/HD) SDI Receiver with Adaptive Equalizer, VC-2 Decoder and Audio CODEC

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Manufacturer	RENESAS [Renesas Technology Corp]

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64 / 92 page

TW6874

FN8430 Rev 1.00

Page 64 of 92

March 25, 2015

TABLE 150. MASTER: AUDIO MASTER CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . READ-WRITE, ADDR = 0x10B

BIT

NAME

BIT DEFINITION

DEFAULT

7

ADAC_EN

Enable DAC

0: Disable

1: Enable

1

6

AADC_EN

Enable ADC

0: Disable

1: Enable

1

5

PB_MASTER

Playback master mode

0: Slave mode (ACLKP/ASYNP are inputs)

1: Master mode (ACLKP/ASYNCP are outputs)

0

4

PB_LRSEL

Select audio channel to be used for playback

If PB_SYNC == 0 (I2S format):

0: First left channel

1: First right channel

If PB_SYNC == 1 (DSP format):

0: First input

1: Second input

0

3

PB_SYNC

Defines the serial data format for playback audio on the ACLKP/SYNP/ADATP pins.

0: I2S format

1: DSP format

0

2

Reserved

0

1

ASYNROEN

ASYNR output mode

0: Output

1: Input

1

0

ACLKRMASTER

ACLKR master/slave mode

0: Slave (input)

1: Master (output)

1

TABLE 151. AFMT: AUDIO OUTPUT FORMAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . READ-WRITE, ADDR = 0x10C

BIT

NAME

BIT DEFINITION

DEFAULT

7:6

AFMT

Select u-Law/A-Law/PCM/SB output format on ADATR/ADATM pins

0: PCM

1: Signed Bit; if MSB is 1 then PCM data is inverted

2: u-Law

3: A-Law

00

5

MIX_DERATIO

Disable the individual mix ratio for each audio

0: Apply the individual mixing ratio for each audio channel. Each channel applies its mixer

gain per MIX_RATIO1/MIX_RATIO2/MIX_RATIO3/ MIX_RATIO4/MIX_RATIO5.

1: Apply MIX_RATIO1 to all channels.

0

4MIX_MUTEPB

ADATP mute

0: Normal

1: Muted

1

3MIX_MUTE4

AIN4 mute

0: Normal

1: Muted

0

2MIX_MUTE3

AIN3 mute

0: Normal

1: Muted

0

1MIX_MUTE2

AIN2 mute

0: Normal

1: Muted

0

0MIX_MUTE1

AIN1 mute

0: Normal

1: Muted

0

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