AM3874 datasheet(74/361 Pages) TI

74 / 361 page

AM3874, AM3871

SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013

www.ti.com

Table 3-13. GP3 Terminal Functions

SIGNAL

TYPE(1)

OTHER(2) (3)

MUXED

DESCRIPTION

NAME

NO.

GPIO3

Note: General-Purpose Input/Output (I/O) pins can also serve as external interrupt inputs.

CLKIN32,

CLKIN32/

CLKOUT0,

CLKOUT0/

IPD

I/O

TIMER3

General-Purpose Input/Output (I/O) 3 [GP3] pin 31.

TIM3_IO/

DVDD

PINCNTL259

GP3[31]

DSIS: PIN

VOUT[1]_B_CB_C[2]/

VOUT[1], GPMC,

GPMC_A[0]/

VIN[1]A, HDMI,

VIN[1]A_D[7]/

IPU

SPI[2]

AF28

I/O

HDMI_CEC/

DVDD

PINCNTL231

SPI[2]_D[0]/

DSIS: PIN

GP3[30]

MM: MUX1

General-Purpose Input/Output (I/O) 3 [GP3] pin 30.

EMAC[0]_MRXD[2]/

EMAC[0], VIN[1]B

EMAC[0]_RGRXD[1]/

IPD

PINCNTL242

VIN[1]B_D[7]/

R23

I/O

DVDD_GPMC

DSIS: PIN

EMAC[0]_RMTXEN/

MM: MUX0

GP3[30]

EMAC[0]_MRXD[1]/

EMAC[0]_RGRXD[0]/

EMAC[0], VIN[1]B

IPD

VIN[1]B_D[6]/

P23

I/O

PINCNTL241

General-Purpose Input/Output (I/O) 3 [GP3] pin 29.

DVDD_GPMC

EMAC[0]_RMTXD[1]/

DSIS: PIN

GP3[29]

EMAC[0]_MRXD[0]/

EMAC[0]_RGTXD[0]/

EMAC[0], VIN[1]B

IPD

VIN[1]B_D[5]/

G28

I/O

PINCNTL240

General-Purpose Input/Output (I/O) 3 [GP3] pin 28.

DVDD_GPMC

EMAC[0]_RMTXD[0]/

DSIS: PIN

GP3[28]

EMAC[0]_MRCLK/

EMAC[0]_RGTXC/

EMAC[0], VIN[1]B,

VIN[1]B_D[4]/

IPD

SPI[3]

H27

I/O

General-Purpose Input/Output (I/O) 3 [GP3] pin 27.

EMAC[0]_RMCRSDV/

DVDD_GPMC

PINCNTL239

SPI[3]_SCS[2]/

DSIS: PIN

GP3[27]

EMAC[0]_MRXER/

EMAC[0]_RGTXCTL/

EMAC[0], VIN[1]B

IPD

VIN[1]B_D[3]/

J26

I/O

PINCNTL238

General-Purpose Input/Output (I/O) 3 [GP3] pin 26.

DVDD_GPMC

EMAC[0]_RMRXER/

DSIS: PIN

GP3[26]

EMAC[0]_MCRS/

EMAC[0]_RGRXD[2]/

EMAC[0], VIN[1]B

IPD

VIN[1]B_D[2]/

R25

I/O

PINCNTL237

General-Purpose Input/Output (I/O) 3 [GP3] pin 25.

DVDD_GPMC

EMAC[0]_RMRXD[1]/

DSIS: PIN

GP3[25]

EMAC[0]_MCOL/

EMAC[0]_RGRXCTL/

EMAC[0], VIN[1]B

IPD

VIN[1]B_D[1]/

L23

I/O

PINCNTL236

General-Purpose Input/Output (I/O) 3 [GP3] pin 24.

DVDD_GPMC

EMAC[0]_RMRXD[0]/

DSIS: PIN

GP3[24]

EMAC[0]_MTCLK/

EMAC[0]_RGRXC/

EMAC[0], VIN[1]B,

VIN[1]B_D[0]/

IPD

SPI[3], I2C[2]

L24

I/O

General-Purpose Input/Output (I/O) 3 [GP3] pin 23.

SPI[3]_SCS[3]/

DVDD_GPMC

PINCNTL235

I2C[2]_SDA/

DSIS: PIN

GP3[23]

(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 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

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