8.2.28 Isolation Timing
Clear bit 10 of BMCR
(return to normal operation
from Isolate mode)
T2.28.1
T2.28.2
H/W or S/W Reset
(with PHYAD = 00000)
MODE
NORMAL
ISOLATE
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
T2.28.2
From Deassertion of S/W or H/W
Reset to transition from Isolate to
Normal mode
500
µs
8.2.29 25 MHz_OUT Timing
X1
T2.29.2
T2.29.1
T2.29.1
25 MHz_OUT
Parameter
Description
Notes
Min Typ Max Units
T2.29.1
25 MHz_OUT High/Low Time
MII mode
20
10
ns
ns
ns
RMII mode
T2.29.2
25 MHz_OUT propagation delay
Relative to X1
8
Note: 25 MHz_OUT characteristics are dependent upon the X1 input characteristics.
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