Two/Four Channel Codec Filter for Terminal Applications SICOFI®-2/4-TE

Interrupt Handling
If all the inputs assigned to channel-pair-1,2 (or 3,4) have been stable for two samples (i.e. for at least the debounce time), an interrupt on INT12 (or INT34) is generated. The status information will be read into the XR-registers with the rising edge of INT12 (or INT34). The status information of the assigned channel-pair-1,2 (or 3,4) will be updated after the next interrupt INT12 (or INT34) has occurred. The interrupt INT12 (or INT34) of assigned channel-pair-1,2 (or 3,4) is cleared, if the registers XR0-XR3 are read via a XOP command.

• The signaling inputs (SIx_x and SBx_x, if programmed as inputs) are sampled after the debounce time (refer to XR4)
• INT12 is assigned to and affected by the signaling inputs of channel-pair-1,2
• INT34 is assigned to and affected by the signaling inputs of channel-pair-3,4