DP83848I_14 Datasheet, PDF (75/97 Pages) Texas Instruments – PHYTER Industrial Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver

8.2.17 10BASE-T Receive Timing (Start of Packet)
1st SFD bit decoded
1 01010101011
TPRD±
CRS
T2.17.1
RX_CLK
RX_DV
RXD[3:0]
T2.17.2
0000
Preamble
T2.17.3
SFD
Data
Parameter
Description
Notes
T2.17.1
Carrier Sense Turn On Delay (PMD
Input Pair to CRS)
T2.17.2
RX_DV Latency
T2.17.3
Receive Data Latency
Measurement shown from SFD
Min Typ Max Units
630 1000 ns
10
bits
8
bits
Note: 10BASE-T RX_DV Latency is measured from first bit of preamble on the wire to the assertion of RX_DV
Note: 1 bit time = 100 ns in 10 Mb/s mode.
8.2.18 10BASE-T Receive Timing (End of Packet)
1
0
1
IDLE
PMD Input Pair
RX_CLK
CRS
T2.18.1
Parameter
Description
T2.18.1
Carrier Sense Turn Off Delay
Notes
Min Typ Max Units
1.0 µs
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