FRSIZE=B_0x0, HYSTEN=B_0x0, DETCFG=B_0x0, SADMOD=B_0x0, SADACTIVE=B_0x0, DATCAP=B_0x0, SADEN=B_0x0, SADST=B_0x0
ADF SAD control register
| SADEN | Sound activity detector enable 0 (B_0x0): SAD disabled and SAD state reset 1 (B_0x1): SAD enabled |
| DATCAP | Data capture mode 0 (B_0x0): Samples from DFLT0 not transfered into the memory 1 (B_0x1): Samples from DFLT0 transfered into the memory when SAD is in DETECT state |
| DETCFG | Sound trigger event configuration 0 (B_0x0): sddet_evt generated when SAD enters the MONITOR state 1 (B_0x1): sddet_evt generated when SAD enters or exits the DETECT state |
| SADST | SAD state 0 (B_0x0): SAD in LEARN state 1 (B_0x1): SAD in MONITOR state 3 (B_0x3): SAD in DETECT state |
| HYSTEN | Hysteresis enable 0 (B_0x0): Hysteresis function disabled. THR less than sub>H less than /sub> is always used. 1 (B_0x1): Hysteresis function enabled. THR less than sub>H less than /sub> is used for MONITOR to DETECT transition and THR less than sub>L less than /sub> is used for DETECT to MONITOR transition. |
| FRSIZE | Frame size 0 (B_0x0): 8 PCM samples used to compute the short-term signal level 1 (B_0x1): 16 PCM samples used to compute the short-term signal level 2 (B_0x2): 32 PCM samples used to compute the short-term signal level 3 (B_0x3): 64 PCM samples used to compute the short-term signal level 4 (B_0x4): 128 PCM samples used to compute the short-term signal level 5 (B_0x5): 256 PCM samples used to compute the short-term signal level |
| SADMOD | SAD working mode 0 (B_0x0): Threshold value computed according to the estimated ambient noise 1 (B_0x1): Threshold value equal to ANMIN[12:0], multiplied by the gain selected by SNTHR[3:0] |
| SADACTIVE | SAD Active flag 0 (B_0x0): SAD not active and can be configured if needed 1 (B_0x1): SAD active and protected fields cannot be configured. |