91C94 Ver la hoja de datos (PDF) - SMSC -> Microchip

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91C94

ISA/PCMCIA Single-Chip Ethernet Controller with RAM

SMSC -> Microchip 

RECP

RECN

nCRS

(internal)

1

0

11 0

1

0

1

0

1

0

t35

f irst bit decoded

t36

1

0

11 0

1

0

1

0

1

0

TPERXP(N)

nCRS

(internal)

t37

t38

f irst bit decoded

Parameter

mi n

typ

max

units

t35

Noise Pulse Width Reject (AUI)

15

25

30

ns

t36

Carri er Sense Turn On Del ay (AUI)

50

70

100

ns

t37

Noise Sense Pul se Width Reject (10BA SE-T) 15

25

30

ns

t38

Carrier Sense Turn On Delay (10BASE-T)

450

500

550

ns

FIGURE 38 - RECEIVE TIMING - START OF FRAME (AUI AND 10BASE-T)

111

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