AM1808AZCED3 datasheet(126/264 Pages) TI

126 / 264 page

AM1808

SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010

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6.14 Serial ATA Controller (SATA)

The Serial ATA Controller (SATA) provides a single HBA port operating in AHCI mode and is used to

interface to data storage devices at both 1.5 Gbits/second and 3.0 Gbits/second line speeds. AHCI

describes a system memory structure that contains a generic area for control and status, and a table of

entries describing a command list where each command list entry contains information necessary to

program an SATA device, and a pointer to a descriptor table for transferring data between system memory

and the device.

The SATA Controller supports the following features:

•

Serial ATA 1.5 Gbps (Gen 1i) and 3 Gbps (Gen 2i) line speeds

•

Support for the AHCI controller spec 1.1

•

Integrated SERDES PHY

•

Integrated Rx and Tx data buffers

•

Supports all SATA power management features

•

Internal DMA engine per port

•

Hardware-assisted native command queuing (NCQ) for up to 32 entries

•

32-bit addressing

•

Supports port multiplier with command-based switching

•

Activity LED support

•

Mechanical presence switch

•

Cold presence detect

126

Peripheral Information and Electrical Specifications

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AM1808AZCED3 Datasheet(PDF) 126 Page - Texas Instruments