AM3871 datasheet(46/345 Pages) TI1

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AM3874, AM3872, AM3871

SPRS695

– SEPTEMBER 2011

www.ti.com

3.2.6

EMAC [(R)(G)MII Modes] and MDIO

Table 3-7. EMAC[0] Terminal Functions [(R)(G)MII]

SIGNAL

TYPE(1)

OTHER(2) (3)

MUXED

DESCRIPTION

NAME

NO.

EMAC[0] (G)MII Mode

TBD

These pin functions are available only when GMII or MII modes are selected.

EMAC[0]_MCOL/

EMAC[0],

EMAC[0]_RGRXCTL/

IPD

VIN[1]B, GP3

VIN[1]B_D[1]/

L23

[G]MII Collision Detect (Sense) input

DVDD_GPMC

PINCNTL236

EMAC[0]_RMRXD[0]/

DSIS: 0

GP3[24]

EMAC[0]_MCRS/

EMAC[0],

EMAC[0]_RGRXD[2]/

IPD

VIN[1]B, GP3

VIN[1]B_D[2]/

R25

[G]MII Carrier Sense input

DVDD_GPMC

PINCNTL237

EMAC[0]_RMRXD[1]/

DSIS: 0

GP3[25]

EMAC[0]_GMTCLK/

EMAC[1],

EMAC[1]_RGRXC/

IPD

GPMC, SPI[2]

K23

GMII Source Asynchronous Transmit Clock

GPMC_A[6]/

DVDD_GPMC

PINCNTL249

SPI[2]_D[1]

DSIS: N/A

EMAC[0]_MRCLK/

EMAC[0],

EMAC[0]_RGTXC/

VIN[1]B, SPI[3],

VIN[1]B_D[4]/

IPD

H27

GP3

[G]MII Receive Clock

EMAC[0]_RMCRSDV/

DVDD_GPMC

PINCNTL239

SPI[3]_SCS[2]/

DSIS: 0

GP3[27]

(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 , Pullup/Pulldown Resistors and , Pin Behaviors at Reset.

(3)

Specifies the operating I/O supply voltage for each signal

Device Pins

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