CS8952(2001) Просмотр технического описания (PDF) - Cirrus Logic

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CS8952
(Rev.:2001)

CrystalLAN™ 100BASE-X and 10BASE-T Transceiver

Cirrus Logic 

CS8952

10BASE-T MII RECEIVE TIMING

Parameter

Symbol

Min

Typ

Max

Unit

RX_CLK Period

tP

-

400

RX_CLK Pulse Width

tWL, tWH

-

200

RXD[3:0], RX_ER, RX_DV setup to rising edge of

tSU

30

-

RX_CLK

-

ns

-

ns

-

ns

RXD[3:0], RX_ER, RX_DV hold from rising edge

tHD

30

-

of RX_CLK

-

ns

RX data valid from CRS

tRLAT

-

RX+/- preamble to CRS asserted

tCRS1

-

RX+/- end of packet to CRS de-asserted

tCRS2

RX+/- preamble to COL asserted

tCOL1

0

RX+/- end of packet to COL de-asserted

tCOL2

-

RX_EN asserted to RX_DV, RXD[3:0], RX_ER

tEN

-

valid

8

10

BT

5

7

BT

2.5

3

BT

-

7

BT

-

3

BT

-

60

ns

RX_EN de-asserted to RX_DV, RXD[3:0]. RX_ER

tDIS

-

in high impedance state

-

60

ns

RX+/-

CRS

COL

RX_EN

RX_DV

RXD[3:0],

RX_ER

RX_CLK

tCRS1

tCOL1

tEN

tRLAT

tSU tHD

tWL

tWH

tP

IN

tCRS2

tCOL2

OUT

OUT

tDIS

IN

OUT

OUT

OUT

CrystalLAN™ 100BASE-X and 10BASE-T Transceiver

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