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DP83847 Datasheet(PDF) 51 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # DP83847
Description  DsPHYTER II ??Single 10/100 Ethernet Transceiver
PDF  60 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83847 Datasheet(HTML) 51 Page - National Semiconductor (TI)

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6.4.6 100BASE-TX Receive Packet Latency Timing
Note: Carrier Sense On Delay is determined by measuring the time from the first bit of the “J” code group to the assertion
of Carrier Sense.
Note: RD
± voltage amplitude is greater than the Signal Detect Turn-On Threshold Value.
6.4.7 100BASE-TX Receive Packet Deassertion Timing
Note: Carrier Sense Off Delay is determined by measuring the time from the first bit of the “T” code group to the deasser-
tion of Carrier Sense.
Parameter
Description
Notes
Min
Typ
Max
Units
T4.6.1
Carrier Sense ON Delay
17.5
bit times
T4.6.2
Receive Data Latency
21
bit times
Parameter
Description
Notes
Min
Typ
Max
Units
T4.7.1
Carrier Sense OFF Delay
21.5
bit times
CRS
RXD[3:0]
RD
±
RX_DV
RX_ER/RXD[4]
IDLE
Data
T4.6.1
T4.6.2
(J/K)
CRS
T4.7.1
RXD[3:0]
RX_DV
RX_ER/RXD[4]
RD
±
DATA
IDLE
(T/R)



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