MTD658E Datasheet, PDF (21/23 Pages) List of Unclassifed Manufacturers – 5/8 Port 10/100 Hub Build_in Bridge And Memory

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