Intel® Agilex™ Hard Processor System Technical Reference Manual

ID 683567
Date 2/14/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

16.5.9.4.1. Disabling the CCS

While waiting for the CCS for an outstanding RW_BLK command, the host can disable the CCS by sending a CCSD command:
  • Send a CCSD command—the controller sends the CCSD command to the CE‑ATA card device if the send_ccsd bit is set to 1 in the ctrl register of the controller. This bit can be set only after a response is received for the RW_BLK command.
  • Send an internal stop command—send an internally-generated SD/SDIO STOP_TRANSMISSION (CMD12) command after sending the CCSD pattern. If the send_auto_stop_ccsd bit of the ctrl register is also set to 1 when the controller is set to send the CCSD pattern, the controller sends the internally-generated STOP command to the CMD pin. After sending the STOP command, the controller sets the acd bit in the rintsts register to 1.