User's Manual

Smart Machine Smart Decision
SIM7100A_User Manual_V1.01 2014-12-11
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3.6.3 Auxiliary PCM (128 KHz PCM clock)
-law coding is supported by the auxiliary PCM. The auxiliary codec port operates with standard
long-sync timing and a 128 KHz clock. The AUX_PCM_SYNC runs at 8 KHz with 50% duty cycle.
Most
-law codec support the 128 KHz clock.
Figure 21: Synchrony timing
Figure 22: EXT CODEC to MODULE timing
Figure 23: MODULE to EXT CODEC timing