AM3874 datasheet(105/361 Pages) TI

105 / 361 page

AM3874, AM3871

www.ti.com

SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013

3.2.17 SPI

Table 3-30. SPI 0 Terminal Functions

SIGNAL

OTHER(2)

TYPE(1)

MUXED

DESCRIPTION

(3)

NAME

NO.

IPU

–

SPI[0]_SCLK

AC7

I/O

SPI Clock I/O

DVDD

PINCNTL82

UART0_DCD/

UART3_RXD/

UART0, UART3,

SPI[0]_SCS[3]/

IPU

I2C[2], SD1, GP1

AH4

I/O

I2C[2]_SCL/

DVDD

PINCNTL74

SD1_POW/

DSIS: PIN

GP1[2]

UART0_DSR/

UART3_TXD/

UART0, UART3,

SPI[0]_SCS[2]/

IPU

I2C[2], SD1, GP1

AG4

I/O

I2C[2]_SDA/

DVDD

PINCNTL75

SPI Chip Select I/O

SD1_SDWP/

DSIS: PIN

GP1[3]

SPI[0]_SCS[1]/

SD1, SATA,

SD1_SDCD/

EDMA, TIMER4,

SATA_ACT0_LED/

IPU

AE5

I/O

GP1

EDMA_EVT1/

DVDD

PINCNTL80

TIM4_IO/

DSIS: PIN

GP1[6]

IPU

–

SPI[0]_SCS[0]

AD6

I/O

DVDD

PINCNTL81

IPU

–

SPI[0]_D[1]

AF3

I/O

DVDD

PINCNTL83

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

IPU

–

SPI[0]_D[0]

AE3

I/O

DVDD

PINCNTL84

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal, MM = Multi Muxed, DSIS = De-

selected Input State

(2)

IPD = Internal Pulldown Active, IPU = Internal Pullup Active, DIS = Internal Pull Disabled. This represents the default state of the

Internal Pull during and after Reset. For more detailed information on pullup/pulldown resistors and situations where external

pullup/pulldown resistors are required, see Section 4.5.1, Pullup/Pulldown Resistors and Section 7.3.17, Pin Behaviors at Reset.

(3)

Specifies the operating I/O supply voltage for each signal

Device Pins

105

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