CS494002 datasheet(92/100 Pages) CIRRUS

92 / 100 page

CMOS level output that outputs a biphase-mark encoded (S/PDIF) IEC60958 signal or digital

audio data which is capable of carrying two channels of PCM digital audio. OUTPUT

AUDATA4, GPIO28 — Digital Audio Output 4, General Purpose I/O

PCM digital-audio data output. This pin can act as a general-purpose input or output that can

be individually configured and controlled by DSPC. BIDIRECTIONAL - Default: OUTPUT

AUDATA5, GPIO29 — Digital Audio Output 5, General Purpose I/O

PCM digital-audio data output. This pin can act as a general-purpose input or output that can

be individually configured and controlled by DSPC. BIDIRECTIONAL - Default: OUTPUT

AUDATA6, GPIO30 — Digital Audio Output 6, General Purpose I/O

PCM digital-audio data output. This pin can act as a general-purpose input or output that can

be individually configured and controlled by DSPC. BIDIRECTIONAL - Default: OUTPUT

AUDATA7, XMT958B, GPIO31 — Digital Audio Output 7, S/PDIF Transmitter, General Purpose I/O

CMOS level output that contains a biphase-mark encoded (S/PDIF) IEC60958 signal or digital

audio data which is capable of carrying two channels of PCM digital audio. This pin can also

act as a general-purpose input or output that can be individually configured and controlled by

DSPC. BIDIRECTIONAL - Default: OUTPUT

DBCK — Debug Clock

Must be tied high to 3.3k ohm resistor. INPUT

DBDA — Debug Data

Must be tied high to 3.3k ohm resistor. BIDIRECTIONAL - Default: INPUT

SLCKN, GPIO22 — PCM Audio Input Bit Clock, General Purpose I/O

Digital-audio bit clock that is an input. SCLKN operates asynchronously from all other DSPAB

clocks. The active edge of SCLKN can be programmed by the DSP. This pin can act as a

general-purpose input or output that can be individually configured and controlled by DSPC.

BIDIRECTIONAL - Default: INPUT

LRCLKN, GPIO23 — PCM Audio Input Sample Rate Clock, General Purpose I/O

Digital-audio frame clock input. LRCLKN operates asynchronously from all other DSPAB

clocks. The polarity of LRCLKN for a particular subframe can be programmed by the DSP.

This pin can act as a general-purpose input or output that can be individually configured and

controlled by DSPC. BIDIRECTIONAL - Default: INPUT

SDATAN0, GPIO24 — PCM Audio Input Data, General Purpose I/O

Digital-audio PCM data input. This pin can act as a general-purpose input or output that can

be individually configured and controlled by DSPC. BIDIRECTIONAL - Default: INPUT

SDATAN1, GPIO25 — PCM Audio Input Data, General Purpose I/O

CS494002 Datasheet(PDF) 92 Page - Cirrus Logic