Cirrus-logic CS8952 Manual do Utilizador descarregar pdf (Página 15)

CS8952

CrystalLAN™ 100BASE-X and 10BASE-T Transceiver 15

DS206F1

10BASE-T SERIAL TRANSMIT TIMING

Parameter Symbol Min Typ Max Unit

TX_EN Setup from TX_CLK t

EHCH

10 - - ns

TX_EN Hold after TX_CLK t

CHEL

10 - - ns

TXD[0] Setup from TX_CLK t

DSCH

10 - - ns

TXD[0] Hold after TX_CLK t

CHDU

10 - - ns

Transmit start-up delay t

STUD

--500ns

Transmit throughput delay t

TPD

--500ns

TX_CLK

TX_EN

TXD[0]

TX+/-

t

EHCH

t

DSCH

t

CHEL

t

CHDU

t

STUD

Valid

Data

Input/Output

Input

Input

Output

t

PD

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 80 81

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