AM3892 datasheet(76/299 Pages) TI

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AM3894

AM3892

SPRS681A – OCTOBER 2010 – REVISED MARCH 2011

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3.2.15 Serial Peripheral Digital Interconnect Format (SPI) Signals

Table 3-18. SPI Terminal Functions

SIGNAL

TYPE(1)

OTHER(2) (3)

MUXED

DESCRIPTION

NAME

NO.

PULL: IPD / IPD

SPI_SCLK

I/O

DRIVE: Z / Z

SPI Clock I/O

PINCTRL166

DVDD_3P3

SPI_SCS[3] /

PULL: DIS / IPU

GPMC, GP1

GPMC_A[21]/

I/O

DRIVE: Z / Z

PINCTRL170

GP1[22]

DVDD_3P3

PULL: DIS / IPU

SPI_SCS[2] /

GPMC

I/O

DRIVE: Z / Z

GPMC_A[22]

PINCTRL169

DVDD_3P3

SPI Chip Select I/O

PULL: DIS / IPU

SPI_SCS[1] /

GPMC

I/O

DRIVE: Z / Z

GPMC_A[23]

PINCTRL168

DVDD_3P3

PULL: DIS / IPU

SPI_SCS[0]

I/O

DRIVE: Z / Z

PINCTRL167

DVDD_3P3

PULL: IPD / IPD

SPI_D[1]

P13

I/O

DRIVE: Z / Z

PINCTRL172

DVDD_3P3

SPI Data I/O. Can be configured as either MISO or

MOSI

PULL: IPD / IPD

SPI_D[0]

N11

I/O

DRIVE: Z / Z

PINCTRL171

DVDD_3P3

(1)

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

(2)

PULL: A / B, where:

A is the state of the internal pull resistor during POR reset

B is the state of the internal pull resistor after POR and Warm reset are de-asserted and during Warm reset

IPD = Internal Pulldown Enabled, IPU = Internal Pullup Enabled, DIS = Internal Pull Disabled

DRIVE: A / B, where;

A is the driving state of the pin during POR reset

B is the driving state of the pin after POR and Warm reset are de-asserted and during Warm reset

H = Driving High, L = Driving Low, Z = 3-State

For more detailed information on pullup/pulldown resistors and situations where external pullup/pulldown resistors are required, see

Section 4.2.1, Pullup/Pulldown Resistors.

(3)

Specifies the operating I/O supply voltage for each signal.

Device Pins

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