[71] NFCT: Frame delay timing is too short after SLP_REQ

This anomaly applies to IC Rev. Rev 1, build codes QKAA-D00.

It was inherited from the previous IC revision Engineering D.

Domains

Application

Symptoms

Reader may not accept the response from the tag.

Conditions

The time between SLP_REQ and ALL_REQ sent by the Reader is shorter than the time configured in FRAMEDELAYMAX.

Consequences

The protocol timing is violated, and a Reader may not accept the response from the tag.

Workaround

Ensure that FRAMEDELAYMAX is set to the default value when the NFCT is in states IDLE or SLEEP_A. The workaround is included in nrfx v2.0.0 and later.