Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

Datasheet, Vol. 2 of 3

September 2014

250

Order Number: 330061-002US

The SATA host controller supports the Function Level Reset (FLR) capability. The FLR 

capability is used in conjunction with Intel

® 

Virtualization Technology. FLR allows an 

operating system in a virtual machine to have complete control over a device, including 

its initialization, without interfering with the rest of the platform. The device provides a 

software interface that enables the operating system to reset the whole device as if a 

PCI reset was asserted.

1. A FLR is initiated by the software writing a 1 to the Initiate FLR bit. 
2. All subsequent requests targeting the function are not claimed and are master 

abort immediate on the bus. This includes any configuration, I/O, or memory 

cycles; however, the function continues to accept completions targeting the 

function. 

The function resets all configuration, I/O and memory registers of the function except 

those indicated otherwise and reset all internal states of the function to the default or 

initial condition. 

The Initiate FLR bit is reset (cleared) when the FLR reset is completed. This bit 

indicates to the software that the FLR reset is completed.