AM3874 datasheet(117/361 Pages) TI

117 / 361 page

AM3874, AM3871

www.ti.com

SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013

Table 3-37. UART1 Terminal Functions

SIGNAL

TYPE(1)

OTHER(2) (3)

MUXED

DESCRIPTION

NAME

NO.

UART1

EMAC[0]_MTXD[5]/

EMAC[0],

EMAC[1]_RGTXC/

EMAC[1], GPMC

IPD

EMAC[1]_RMCRSDV/

F27

PINCNTL255

DVDD_GPMC

GPMC_A[12]/

DSIS: 1

UART1_RXD

MM: MUX1

UART1 Receive Data Input. Functions as IrDA receive

input in IrDA modes and CIR receive input in CIR mode.

UART0, UART3,

UART0_RIN/

GP1

UART3_RTS/

IPU

AF4

PINCNTL77

UART1_RXD/

DVDD

DSIS: 1

GP1[5]

MM: MUX0

EMAC[0]_MTXD[6]/

EMAC[0],

EMAC[1]_RGRXD[0]/

EMAC[1], GPMC

IPD

EMAC[1]_RMTXD[0]/

J22

PINCNTL256

DVDD_GPMC

GPMC_A[13]/

DSIS: PIN

UART1_TXD

MM: MUX1

UART1 Transmit Data Output. Functions as CIR transmit

output in CIR mode.

UART0, UART3,

UART0_DTR/

GP1

UART3_CTS/

IPU

AG2

PINCNTL76

UART1_TXD/

DVDD

DSIS: PIN

GP1[4]

MM: MUX0

EMAC[0]_MTXEN/

EMAC[0],

EMAC[1]_RGRXD[2]/

UART1 Request to Send Output. Indicates module is

IPD

EMAC[1], GPMC

EMAC[1]_RMTXEN/

J23

ready to receive data. Functions as transmit data output

DVDD_GPMC

PINCNTL258

GPMC_A[15]/

in IrDA modes.

DSIS: PIN

UART1_RTS

EMAC[0]_MTXD[7]/

EMCA[0],

EMAC[1]_RGTXD[3]/

IPD

EMAC[1], GPMC

UART1 Clear to Send Input. Functions as SD

EMAC[1]_RMTXD[1]/

H24

I/O

DVDD_GPMC

PINCNTL257

transceiver control output in IrDA and CIR modes.

GPMC_A[14]/

DSIS: 1

UART1_CTS

(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

117

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