Fast Ethernet 10/100 Hex Transceiver with Full MII — LXT9763
Figure 33. MDIO Read Timing (MDIO Sourced by PHY)
MDC
t3
MDIO
Table 33. MDIO Timing Parameters
1
Parameter
Sym
Min
Typ
Max
Units
Test Conditions
MDC = 2.5 MHz
10
1
–
–
–
–
–
–
–
ns
ns
ns
ns
ns
ns
MDIO setup before MDC, sourced
by STA
t1
MDC = 8 MHz
MDC = 2.5 MHz
MDC = 8 MHz
MDC = 2.5 MHz
MDC = 8 MHz
10
1
–
MDIO hold after MDC,
sourced by STA
t2
t3
–
10
–
300
–
MDC to MDIO output delay,
sourced by PHY
130
1. Typical values are at 25° C and are for design aid only; not guaranteed and not subject to production testing.
Figure 34. Power-Up Timing
v1
t1
VCC
MDIO,etc
Table 34. Power-Up Timing Parameters
1
Parameter
Sym
Min
Typ
Max
Units
Test Conditions
Voltage threshold
Power Up delay
v1
t1
–
–
2.9
–
V
–
–
–
500
ms
1. Typical values are at 25° C and are for design aid only; not guaranteed and not subject to production testing.
Datasheet
57
INTEL [ INTEL ]
