CS8415A-IZ Просмотр технического описания (PDF) - Cirrus Logic

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CS8415A-IZ

96 kHz Digital Audio Interface Receiver

Cirrus Logic 

CS8415A

MUX2:0 - 7:1 S/PDIF Input Multiplexer Select Line Control

Default = ‘000’

000 - RXP0

001 - RXP1

010 - RXP2

011 - RXP3

100 - RXP4

101 - RXP5

110 - RXP6

111 - Reserved

8.3 Clock Source Control (04h)

7

6

5

4

3

2

1

0

0

RUN

0

0

0

0

0

0

This register configures the clock sources of various blocks. In conjunction with the Data Flow Control register, var-

ious Receiver/Transmitter/Transceiver modes may be selected.

RUN - Controls the internal clocks, allowing the CS8415A to be placed in a “powered down”, low

current consumption, state.

Default = ‘0’

0 - Internal clocks are stopped. Internal state machines are reset. The fully static control port is

operational, allowing registers to be read or changed. Reading and writing the U and C data

buffers is not possible. Power consumption is low.

1 - Normal part operation. This bit must be written to the 1 state to allow the CS8415A to begin

operation. All input clocks should be stable in frequency and phase when RUN is set to 1.

8.4 Serial Audio Output Port Data Format (06h)

7

SOMS

6

SOSF

5

SORES1

4

SORES0

3

SOJUST

2

SODEL

1

SOSPOL

0

SOLRPOL

SOMS - Master/Slave Mode Selector

Default = ‘0’

0 - Serial audio output port is in slave mode

1 - Serial audio output port is in master mode

SOSF - OSCLK frequency (for master mode)

Default = ‘0’

0 - 64*Fs

1 - 128*Fs

SORES1:0 - Resolution of the output data on SDOUT

Default = ‘00’

00 - 24-bit resolution

01 - 20-bit resolution

10 - 16-bit resolution

11 - Direct copy of the received NRZ data from the AES3 receiver (including C, U, and V bits,

the time slot normally occupied by the P bit is used to indicate the location of the block start,

21

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