AM3874 datasheet(119/361 Pages) TI

119 / 361 page

AM3874, AM3871

www.ti.com

SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013

Table 3-39. UART3 Terminal Functions

SIGNAL

OTHER(2)

TYPE(1)

MUXED

DESCRIPTION

(3)

NAME

NO.

UART3

VOUT[1],

VOUT[1]_B_CB_C[6]/

EMAC[1], VIN[1]A,

EMAC[1]_MRXD[2]/

IPD

GP3

VIN[1]A_D[3]/

AD25

DVDD

PINCNTL211

UART3_RXD/

DSIS: 1

GP3[3]

MM: MUX1

UART3 Receive Data Input. Functions as IrDA receive input

in IrDA modes and CIR receive input in CIR mode.

UART0_DCD/

UART0, SPI[0],

UART3_RXD/

I2C[2], SD1, GP1

SPI[0]_SCS[3]/

IPU

AH4

PINCNTL74

I2C[2]_SCL/

DVDD

DSIS: 1

SD1_POW/

MM: MUX0

GP1[2]

VOUT[1],

VOUT[1]_B_CB_C[7]/

EMAC[1], VIN[1]A,

EMAC[1]_MRXD[3]/

IPD

GP3

VIN[1]A_D[4]/

AC25

DVDD

PINCNTL212

UART3_TXD/

DSIS: PIN

GP3[4]

MM: MUX1

UART3 Transmit Data Output. Functions as CIR transmit

output in CIR mode.

UART0_DSR/

UART0, SPI[0],

UART3_TXD/

I2C[2], SD1, GP1

SPI[0]_SCS[2]/

IPU

AG4

PINCNTL75

I2C[2]_SDA/

DVDD

DSIS: PIN

SD1_SDWP/

MM: MUX0

GP1[3]

VOUT[1]_HSYNC/

VOUT[1],

EMAC[1]_MCOL/

EMAC[1], VIN[1]A,

VIN[1]A_VSYNC/

IPD

SPI[3], GP2

AC24

SPI[3]_D[1]/

DVDD

PINCNTL205

UART3_RTS/

DSIS: PIN

UART3 Request to Send Output. Indicates module is ready

GP2[29]

MM: MUX1

to receive data. Functions as transmit data output in IrDA

modes.

UART0, UART1,

UART0_RIN/

GP1

UART3_RTS/

IPU

AF4

PINCNTL77

UART1_RXD/

DVDD

DSIS: PIN

GP1[5]

MM: MUX0

VOUT[1]_VSYNC/

VOUT[1],

EMAC[1]_MCRS/

EMAC[1], VIN[1]A,

VIN[1]A_FLD/

IPD

SPI[3], GP2

VIN[1]A_DE/

AA23

I/O

DVDD

PINCNTL206

SPI[3]_D[0]/

DSIS: 1

UART3_CTS/

UART3 Clear to Send Input. Functions as SD transceiver

MM: MUX1

GP2[30]

control output in IrDA and CIR modes.

UART3, UART1,

UART0_DTR/

GP1

UART3_CTS/

IPU

AG2

I/O

PINCNTL76

UART1_TXD/

DVDD

DSIS: 1

GP1[4]

MM: MUX0

(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

119

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