AM1808AZCED3 datasheet(46/264 Pages) TI

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AM1808

SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010

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3.7.21

Serial ATA Controller (SATA)

Table 3-23. Serial ATA Controller (SATA) Terminal Functions

SIGNAL

POWER

TYPE(1)

PULL(2)

DESCRIPTION

GROUP(3)

NAME

NO.

SATA_RXP

—

SATA receive data (positive)

SATA_RXN

—

SATA receive data (negative)

SATA_TXP

—

SATA transmit data (positive)

SATA_TXN

—

SATA transmit data (negative)

SATA_REFCLKP

—

SATA PHY reference clock (positive)

SATA_REFCLKN

—

SATA PHY reference clock (negative)

SPI0_SCS[3] / UART0_CTS / GP8[2] /

E17

CP[9]

SATA mechanical presence switch input

MII_RXD[1] / SATA_MP_SWITCH

SPI0_SCS[2] / UART0_RTS / GP8[1] /

D16

CP[9]

SATA cold presence detect input

MII_RXD[0] / SATA_CP_DET

SPI1_SCS[2] / UART1_TXD /

F19

CP[13]

SATA cold presence power-on output

SATA_CP_POD / GP1[0]

SPI1_SCS[3] / UART1_RXD / SATA_LED /

E18

CP[13]

SATA LED control output

GP1[1]

SATA PHY PLL regulator output. Requires an

SATA_REG

—

external 0.1uF filter capacitor.

SATA_VDDR

PWR

—

SATA PHY 1.8V internal regulator supply

M2,

P1,

SATA_VDD

PWR

—

SATA PHY 1.2V logic supply

P2,

H1,

H2,

K1,

SATA_VSS

GND

—

SATA PHY ground reference

K2,

L3,

(1)

I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.

Note: The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the signal name

highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured

function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different

types (ie., input versus output), the table reflects the pin function direction for that particular peripheral.

(2)

IPD = Internal Pulldown resistor; IPU = Internal Pullup resistor; CP[n] = configurable pull-up/pull-down (where n is the pin group) using

the PUPDENA and PUPDSEL registers in the System Module. The pull-up and pull-down control of these pins is not active until the

device is out of reset. During reset, all of the pins associated with these registers are weakly pulled down. If the application requires a

pull-up, an external pull-up can be used.

(3)

This signal is part of a dual-voltage IO group (A, B or C). These groups can be operated at 3.3V or 1.8V nominal. The three groups can

be operated at independent voltages but all pins withina group will operate at the same voltage. Group A operates at the voltage of

power supply DVDD3318_A. Group B operates at the voltage of power supply DVDD3318_B. Group C operates at the voltage of power

supply DVDD3318_C.

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