42.7.6 TWIHS Comparison Function on Received Character

The comparison function differs if asynchronous partial wakeup (SleepWalking) is enabled or not.

If asynchronous partial wakeup is disabled (see the section “Power Management Controller (PMC)”), the TWIHS can extend the address matching on up to three Client addresses. The SADR1EN, SADR2EN and SADR3EN bits in TWIHS_SMR enable address matching on additional addresses which can be configured through SADR1, SADR2 and SADR3 fields in the TWIHS_SWMR. The DATAMEN bit in the TWIHS_SMR has no effect.

The SVACC bit is set when there is a comparison match with the received Client address.