Intel® Processor and Intel® Core™ i3 N-Series
Datasheet, Volume 1 of 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 759603 | 01/04/2023 | Public |
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SATA Device Presence
The flow used to indicate SATA device presence is shown in the Figure below. The ‘PxE’ bit refers to PCS.P[1:0]E bits, depending on the port being checked and the ‘PxP’ bits refer to the PCS.P[1:0]P bits, depending on the port being checked. If the PCS/PxP bit is set a device is present, if the bit is cleared a device is not present. If a port is disabled, software can check to see if a new device is connected by periodically re - enabling the port and observing if a device is present, if a device is not present it can disable the port and check again later. If a port remains enabled, software can periodically poll PCS.PxP to see if a new device is connected.