13.2 Sampling clock tuning procedure

The sampling clock tuning procedure described in the “SD Host Controller Simplified Specification V3.00” may freeze in the latest verification of the “Wait until Buffer Read Ready” condition.

Work around

The condition “Check Execute Tuning = 0“ can be OR’ed to “Wait until Buffer Read Ready” condition in the loop issuing the SEND_TUNING_BLOCK command (CMD19).