Sierra Wireless MC8775 Reference Manual page 100

MC87xx Extended AT Command Reference
Table 7-3: Voice command details (Continued)
Command
!AVEXTPCMSTOPCLKOFF?
!AVEXTPCMSTOPCLKOFF
= <value>
Supporting Mini Cards:
•
MC8775V (minimum
FW rev: H1_0_0_10mcap)
•
MC8785V
•
MC8790V
•
MC8791V
•
MC8792V
100
Enable / disable ability to turn off the external PCM
interface clock
If the current audio profile uses the external PCM interface, this
command enables or disables the ability to turn off the external PCM
interface clock—the change takes effect after the modem is reset.
Note: The external PCM interface for the current audio profile must be
enabled before using this command.
Usage:
•
AT!AVEXTPCMSTOPCLKOFF? returns the current status (<value>)
of this option.
•
AT!AVEXTPCMSTOPCLKOFF=<value> enables or disables
(<value>) the ability to turn off the external PCM interface clock
Parameters:
<value> (ability to prevent PCM clock from being turned off)
•
0 = Disable
•
1 = Enable
· At startup, if audio profile 0 (default) uses the external
PCM interface, the modem enables the clock.
· At startup, if audio profile 0 (default) does not use the
external PCM interface, the user must switch to a different
profile that does to enable the clock.
Note: If the user switches from a profile that uses the external PCM
interface to one that does not, the PCM clock is lost.
Note: Depending on the external CODEC configuration, OEMs using
this command might prevent the audio from being muted, so the device
could be more prone to noise from the RF subsystem.
Description
2130616