I347-AT4 Datasheet, PDF (124/148 Pages) Intel Corporation – Intel® Ethernet Network Connection I347-AT4 Datasheet

I347-AT4—Electrical and Timing Specifications
5.6
MDC/MDIO Timing
Over a full range of values listed in Section 5.1 unless otherwise specified.
Symbol
Parameter
T_{DLY_MDIO}
MDC to MDIO (Output)
Delay Time
T_{SU_ MDIO}
MDIO (Input) to MDC Setup
Time
T_{HD_ MDIO}
MDIO (Input) to MDC Hold
Time
T_{P_ MDC}
MDC Period
T_{H_ MDC}
MDC High
T_{L_ MDC}
MDC Low
V_HYST
VDDO Input Hysteresis
1. Maximum frequency = 12 MHz.
Condition
Min
0
10
10
83.333
30
30
Typ
360
Max
20
Units
ns
ns
ns
ns¹
ns
ns
mV
T_{H_MDC}
T_{L_MDC}
MDC
MDIO (Output)
T_{P_MDC}
T_{DLY_MDIO}
MDC
MDIO (Input)
T_{SU_MDIO}
Valid Data
T_{HD_MDIO}
Figure 29. MDC/MDIO Timing
High
Low
V_IN
V_HYST
Figure 30. MDC/MDIO Input Hysteresis
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