9.3.15.2.1 Reset Energysense Loss (in Active Mode)

Background: In active mode, the threshold is set to a system-level defined loss threshold (for example, –80 dBFS), and the timeout set to 1 minute.

After 1 minute, the interrupt triggers. To reset energysense loss, take the following steps:

Step 1: Disable the interrupt in INT_EN (Page.0 0x60)

Step 2: Look at INT_STAT (Page.0 0x61). What is the energysense interrupt?

The interrupt status register INT_STAT (Page.0 0x61) is sticky in active mode. After being set, this register cannot be reset without clearing SIGDET_STAT (Page.0 0x32).

Step 3 Option 1:The easiest way to clear the register is to move to sleep mode. PWRDN_CTRL (Page.0 0x70)

Step 3 Option 2: To ignore the interrupt, or to clear it and remain in active mode (and wait another minute)

Step 4: Set the signal loss threshold to –110 dB (so that the interrupt is no longer generated by internal logic)

Step 5: Clear the SIGDET_STAT (Page.0 0x32) register by:

Write 0xFF to SIGDET_STAT (Page.0 0x32)

Read SIGDET_STAT (Page.0 0x32). The register should be 0x00

Step 6: Now set signal loss threshold to the original –80 dBFS

Step 7: Enable the interrupt again INT_EN (Page.0 0x60)