Cirrus-logic CS8420 Manual de usuario descargar pdf (Pagina 34)

34 DS245F4

CS8420

10.2 Miscellaneous Control 1 (01h)

SWCLK Causes OMCK to be output through the RMCK pin when the PLL is unlocked

0 - RMCK is driven by the PLL VCO (default)

1 - OMCK is switched to output through the RMCK pin when the PLL is unlocked. Circuitry driv-

en by the PLL is driven by OMCK.

VSET Transmitted V bit level

0 - Transmit a 0 for the V bit, indicating that the data is valid, and is normally linear PCM audio

(default)

1 - Transmit a 1 for the V bit, indicating that the data is invalid or is not linear PCM audio data

MUTESAO Mute control for the serial audio output port

0 - Normal output (default)

1 - Mute the serial audio output port

MUTEAES Mute control for the AES3 transmitter output

0 - Normal output (default)

1 - Mute the AES3 transmitter output

DITH Dither Control

0 - Triangular PDF dither applied to output data. The level of the dither is automatically adjusted

to be appropriate for the output word length selected by the SORES bits (default)

1 - No dither applied to output data.

INT[1:0] Interrupt (INT) output pin control

00 - Active high, high output indicates an interrupt condition has occurred (default)

01 - Active low, low output indicates an interrupt condition has occurred

10 - Open drain, active low. This setting requires an external pull up resistor on the INT pin.

11 - Reserved

TCBLD Transmit Channel Status Block pin (TCBL) direction specifier

0 - TCBL is an input (default)

1 - TCBL is an output

7 6543210

SWCLK VSET MUTESAO MUTEAES DITH INT1 INT0 TCBLD

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Cirrus-logic CS8420 Manual de usuario Pagina 34