DM9081 Просмотр технического описания (PDF) - Davicom Semiconductor, Inc.

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DM9081

10 BASE-T hub controller

Davicom Semiconductor, Inc. 

DM9081

10BASE-T Hub Controller

AUI Receive Timing

Symbol

Parameter

Min. Typ. Max. Unit Conditions

tPWORX RXP/RXN Pulse Width Accept/Reject Threshold

15

45 ns |VIN|>|VASQ|

tPWKRX RXP/RXN Pulse Width Maintain/Turn-Off Threshold 136

200 ns |VIN|>|VASQ|

tPWKRX

RXP/RXN

VASQ

tPWKRX

tPWORX

AUI Collision Timing

Symbol

Parameter

tPWOCD CDP/CDN Pulse Width Accept/Reject Threshold

tPWKCD CDP/CDN Pulse Width Maintain/Turn-off Threshold

Min.

10

90

Typ. Max. Unit Conditions

26 ns |VIN|>|VASQ|

160 ns |VIN|>|VASQ|

CDP/CDN

VASQ

tPWOCD

tPWKCD

Transmit Timing

Symbol

tPREDY

tIDL

Parameter

DTPO- to TPO+ and DTPO+ To TPO- Delay

TPO+ High To Idle Time

TPO+

Min. Typ. Max. Unit

47

53 ns

250

350 ns

tIDL

Conditions

TPO-

DTPR-

DTPR+

tPREDY

Final

17

Version: DM9081-DS-F02

February 02, 2001

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