MTD658E Ver la hoja de datos (PDF) - Myson Century Inc

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componentes Descripción

Fabricante

MTD658E

5/8 Port 10/100 Hub Build_in Bridge And Memory

Myson Century Inc 

MYSON

TECHNOLOGY

MTD658E

IMASTER

REQOUT100,

REQOUT10

REQIN100,

REQIN10

IACKB100,

IACKB10

ICOLB100,

ICOLB10

FIGURE 5. Inter -Bus Inter face timing III

T19

T20

T22

T21

Symbol

Parameter

T19

Inter-Bus slave REQOUT asserted to

IACKB asserted propogation delay

Inter-Bus slave REQOUT deasserted

T20 to IACKB deasserted propogation

delay

Inter-Bus slave REQIN asserted to

T21 IACKB deasserted(ICOLB asserted)

propogation delay(SOJ)

Inter-Bus slave REQOUT deasserted

T22 to IACKB asserted(ICOLBdeas-

serted) propogation delay(EOJ)

Min.

5

5

5

5

Typ.

Max.

20

20

20

20

Unit Note

nS

2

nS

2

nS

2

nS

2

Note 2 : In 10M/100M Inter-Bus interface, T19-T22 have the same value.

FIGURE 6. MII Management timing

Input Timing

T23

MDC

MDIO

T24

T25

Valid

MDC

MDIO

Output Timing

T26

T27

Valid

Symbol

Parameter

T23 MDC clock cycle

T23 MDIO input setup time

Min.

10

21/23

Typ.

400

Max.

Unit Note

nS

nS

MTD658E Revision 1.1 05/25/2000

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