DP83256VF-AP NSC [National Semiconductor], DP83256VF-AP Datasheet - Page 120
DP83256VF-AP
Manufacturer Part Number
DP83256VF-AP
Description
Manufacturer
NSC [National Semiconductor]
Datasheet
1.DP83256VF-AP.pdf
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7 0 Electrical Characteristics
AC Characteristics for the PMD Interface
The following signals are covered PMD Indicate Data (PMID) Signal Detect (SD) and PMD Request Data (PMRD)
Note 1 This only applies when the Alternate PMD Interface is disabled APMDREG APMDEN
Note 2 This parameter is not tested but is assured by correlation with characterization data
Symbol
T36
T37
T38
T39
PMID
SD Minimum Pulse Width
PMRD Rise Time
PMRD Fall Time
g
to PMRD
Parameter
g
Latency
FIGURE 7-10 Primary PMD Timing Diagrams
(Continued)
Looped Back through
Configuration Switch
LBC1
In Lock
(Note 1)
(Note 2)
(Note 2)
Conditions
e
120
12 5 MHz
e
0
Min
120
Typ
5
TL F 11708– 36
Max
1 5
1 5
Cycles
Units
LBC
ns
ns
ns
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