lxt972a Intel Corporation, lxt972a Datasheet - Page 53

• Manufacturer Part Number: lxt972a
• Description: 3.3v Dual-speed Fast Ethernet Transceiver Datasheet
• Manufacturer: Intel Corporation

Datasheet
MDIO setup before MDC, sourced
by STA
MDIO hold after MDC, sourced by
STA
MDC to MDIO output delay, source
by PHY
MDC period
1. Typical values are at 25° C and are for design aid only; not guaranteed and not subject to production testing.
Figure 32. MDIO Input Timing
Figure 33. MDIO Output Timing
Table 32. MDIO Timing Parameters
Parameter
MDIO
MDIO
MDC
MDC
Sym
3.3V Dual-Speed Fast Ethernet Transceiver Datasheet — LXT972A
t1
t2
t3
t4
Min
125
10
5
–
t3
t4
Typ
–
–
–
–
1
t1
Max
150
–
–
–
t2
Units
ns
ns
ns
ns
Test Conditions
MDC = 8 MHz
–
–
–
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