Datasheet

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DP83849C
8.2.28 Isolation Timing
8.2.29 CLK2MAC Timing
Note: CLK2MAC characteristics are dependent upon the X1 input characteristics.
Parameter Description Notes Min Typ Max Units
T2.28.1 From software clear of bit 10 in
the BMCR register to the transi-
tion from Isolate to Normal Mode
100 µs
Parameter Description Notes Min Typ Max Units
T2.29.1 CLK2MAC High/Low Time MII mode 20 ns
RMII mode 10 ns
T2.29.2 CLK2MAC propagation delay Relative to X1 8 ns
Clear bit 10 of BMCR
(return to normal operation
from Isolate mode)
MODE
ISOLATE
NORMAL
T2.28.1
X1
T2.29.2
CLK2MAC
T2.29.1 T2.29.1