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Rainbow Electronics W90N745CDG User Manual

Page 396

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W90N745CD/W90N745CDG

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SYMBOL DESCRIPTION MIN

TYP

MAX

UNIT

T

FREQ

RMII reference clock frequency

50

MHz

T

DUTY

RMII clock duty

35%

50%

65%

ns

T

TXO

Transmit data output delay

5

-

15

ns

T

TXH

Transmit data hold time

2

-

-

ns

T

RXS

Receive data setup time

4

-

-

ns

T

RXH

Receive data hold time

2

-

-

ns

PHY_MDC

PHY_MDIO

(Write)

T

MDO

valid data

T

MDH

valid data

T

MDS

T

MDH

PHY_MDIO

(Read)

SYMBOL DESCRIPTION MIN

MAX

UNIT

T

MDO

MDIO Output Delay Time

0

15

ns

T

MDSU

MDIO Setup Time

5

ns

T

MDH

MDIO Hold Time

5

ns