AM1808 datasheet(128/262 Pages) TI

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SATA Interface(Processor)

SATA Connector

SATA_TXN

SATA_TXP

SATA_RXN

SATA_RXP

SATA_REFCLKN

SATA_REFCLKP

TX–

TX+

RX–

RX+

LVDS

Oscillator

CLK–

CLK+

SATA_REG

0.1uF

10nF

AM1808

SPRS653C

– FEBRUARY 2010 – REVISED DECEMBER 2011

www.ti.com

5.14.2 SATA Interface

This section provides the timing specification for the SATA interface as a PCB design and manufacturing

specification. The design rules constrain PCB trace length, PCB trace skew, signal integrity, cross-talk,

and signal timing. TI has performed the simulation and system design work to ensure the SATA interface

requirements are met.

5.14.2.1 SATA Interface Schematic

Figure 5-28 shows the SATA interface schematic.

Figure 5-28. SATA Interface High Level Schematic

5.14.2.2 Compatible SATA Components and Modes

Table 5-43 shows the compatible SATA components and supported modes. Note that the only supported

configuration is an internal cable from the processor host to the SATA device.

Table 5-43. SATA Supported Modes

PARAMETER

MIN

MAX

UNIT

SUPPORTED

Transfer Rates

1.5

3.0

Gbps

eSATA

xSATA

Backplane

Internal Cable

Yes

128

Peripheral Information and Electrical Specifications

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