Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

Datasheet, Vol. 2 of 3

September 2014

246

Order Number: 330061-002US

The SoC has two independent integrated SATA host controllers. One controller supports 

DMA operation on up to four ports and supports data transfer rates of 3.0 Gb/s (300 

MB/s) and 1.5 Gb/s (150 MB/s). The SATA3 controller in addition to legacy data rates 

supports data rates of up to 6 Gb/s (600 MB/s). SATA3 controller is the legacy IDE 

controller and has two ports. Both SATA controllers contains two modes of operation—a 

native mode and an AHCI mode using memory space. Software that uses a legacy 

mode does not have AHCI capabilities.

The SoC supports the Serial ATA Revision 3.0 Specification. The SoC also supports 

Serial ATA Revision 2.6 Specification.

The SATA controllers feature two sets of interface signals (ports) that are independently 

enabled or disabled (they cannot be tri-stated or driven low). Each interface is 

supported by an independent DMA controller.

The SATA controllers interact with an attached mass storage device through a register 

interface that is equivalent to that presented by a traditional IDE host adapter. The host 

software follows existing standards and conventions when accessing the register 

interface and follows standard command protocol conventions.

SATA interface transfer rates are independent of UDMA mode settings. SATA interface 

transfer rates operate at the bus maximum speed, regardless of the UDMA mode 

reported by the SATA device or the system BIOS.

Serial ATA

3.1

July 18, 2011

Serial ATA

3.0

June 2, 2009

SATA AHCI

1.3

June 26, 2008

Serial ATA 

2.6

Feb. 15, 2007

I

O

SA
TA
 3G
b/

s

4

I

O

SATA

 6G
b/

s

2

I

O