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DP83849IF Datasheet(PDF) 105 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # DP83849IF
Description  PHYTER짰 DUAL Industrial Temperature with Fiber Support (FX) an Flexible Port Switching Dual Port 10/100 Mb/s Ethernet Physical Layer Transceiver
PDF  108 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83849IF Datasheet(HTML) 105 Page - National Semiconductor (TI)

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8.2 AC Specs (Continued)
8.2.29 Single Clock MII (SCMII) Receive Timing
Note: Output delays assume a 25pF load.
Note: CRS is asserted and deasserted asynchronously relative to the reference clock.
Note: CRS ON delay is measured from the first bit of the JK symbol on the PMD Receive Pair to assertion of CRS_DV.
Note: CRS_OFF delay is measured from the first bit of the TR symbol on the PMD Receive Pair to deassertion of
CRS_DV.
Note: Receive Latency is measured from the first bit of the symbol pair on the PMD Receive Pair. Typical values are with
the Elasticity Buffer set to the default value (01).
Parameter
Description
Notes
Min
Typ
Max
Units
T2.29.1
X1 Clock Period
25MHz Reference Clock
40
ns
T2.29.2
RXD[3:0], RX_DV and RX_ER
output delay
From X1 rising
2
18
ns
T2.29.3
CRS ON delay (100Mb)
100BASE-TX mode
100BASE-FX mode
19
9
bits
T2.29.4
CRS OFF delay (100Mb)
100BASE-TX mode
100BASE-FX mode
26
16
bits
T2.29.5
RXD[1:0] and RX_ER latency
(100Mb)
100BASE-TX mode
100BASE-FX mode
56
46
bits
X1
CRS
RX_DV
T2.29.1
T2.29.2
PMD Input Pair
IDLE
Data
(J/K)
T2.29.3
T2.29.5
Data
(TR)
T2.29.4
RXD[1:0]
RX_ER
T2.29.2



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