DP83849IF_14 Datasheet, PDF (31/104 Pages) Texas Instruments – PHYTER™ DUAL Industrial Temperature with Fiber Support (FX) and Flexible Port Switching Dual Port 10/100 Mb/s Ethernet Physical Layer Tranceiver

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3.34 AC Specifications — Isolation Timing
Parameter
Description
T2.30.1
From software clear of bit 10 in the BMCR register to the
transition from Isolate to Normal Mode
Notes
Clear Bit 10 of BMCR
(return to normal operation
from isolate mode)
T2.30.1
DP83849IF
SNOSAX8C – JUNE 2008 – REVISED APRIL 2009
Min
Typ
Max
Units
100
µs
MODE
ISOLATE NORMAL
3.35 AC Specifications — CLK2MAC Timing⁽¹⁾
Parameter
Description
T2.31.1 CLK2MAC High/Low Time
T2.31.2 CLK2MAC propagation delay
Notes
MII mode
RMII mode
Relative to X1
Min
Typ
Max
Units
20
ns
10
ns
8
ns
(1) CLK2MAC characteristics are dependent upon the X1 input characteristics.
X1
CLK2MAC
T2.31.1
T2.31.2
T2.31.1
3.36 AC Specifications — 100 Mb/s X1 TO TX_CLK Timing
Parameter
Description
T2.32.1
X1 to TX_CLK delay⁽¹⁾
Notes
Min
Typ
Max
100 Mb/s Normal mode
0
5
(1) X1 to TX_CLK timing is provided to support devices that use X1 instead of TX_CLK as the reference for transmit Mll data.
Units
ns
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Electrical Specifications
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