Specifications

AirPrime UMTS / LTE MC/SL-Series Extended AT Command Reference
140 Proprietary and Confidential 2130616
!AVEXTPCMCFG
Supporting chipsets (voice-
enabled devices only):
• MDM6200
• MSM6290 (min f/w rev:
K1_0_2_0ap)
• QSC6270 (min f/w rev: S2.0)
Configure external PCM interface
Configure the external PCM interface by specifying the clock speed, the format, and
enabling/disabling padding.
These settings are stored in non-volatile memory and persist across power cycles.
Note: MDM6200 supports only PCM <clock> speed 0 (2.048 MHz).
Device-specific details:
• MSM6290 (Firmware revisions K2_0_7_8ap and lower):
• The change takes effect immediately if the current profile uses the external
PCM interface.
• All other chipsets/firmware revisions:
• The change takes effect immediately for the specified profile.
Usage:
• Execution: AT!AVEXTPCMCFG=<clock>, <format>, <padding>
Response:
OK
Purpose: Configure the external PCM interface.
• Query: AT!AVEXTPCMCFG?
Response:
<clock> <format> <padding>
OK
Purpose: Display current PCM interface configuration settings.
Parameters:
<clock> (PCM clock speed)
• 0=2.048 MHz (short sync)
• 1=128 kHz (long sync)
<format> (PCM format type)
• 0=8-bit -law
• 1=8-bit a-law
• 2=16-bit linear
<padding> (Enable/disable padding)
• 0=Disable
• 1=Enable
Note: Padding is typically disabled (padding bits are used to control the volume
level for some external codecs).
Table 7-5: Voice command details (Continued)
Command Description