Datasheet

T2.17.1
T2.17.2
T2.17.3
1 0 1 0 1 0 1 0 1 0 1 1
1st SFD Bit Decoded
0000 Preamble SFD Data
RXD[3:0]
RX_DV
RX_CLK
CRS
TPRDr
DP83848VYB
www.ti.com SNLS266D –MAY 2007–REVISED APRIL 2013
4.20 AC Specifications — 10BASE-T Receive Timing (Start of Packet)
Parameter Description Notes
(1)
Min Typ Max Units
T2.17.1 Carrier Sense Turn On Delay (PMD 630 1000 ns
Input Pair to CRS)
T2.17.2 RX_DV Latency
(2)
10 bits
T2.17.3 Receive Data Latency Measurement shown from SFD 8 bits
(1) 1 bit time = 100 ns in 10 Mb/s mode.
(2) 10BASE-T RX_DV Latency is measured from first bit of preamble on the wire to the assertion of RX_DV
4.21 AC Specifications — 10BASE-T Receive Timing (End of Packet)
Parameter Description Notes Min Typ Max Units
T2.18.1 Carrier Sense Turn Off Delay 1 µs
Copyright © 2007–2013, Texas Instruments Incorporated Electrical Specifications 23
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