Datasheet
9.0 Electrical Specifications (Continued)
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9.5.16 10BASE-T Receive Timing (Start of Packet)
Note: 10BASE-T receive Data 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 for both nibble and serial operation.
9.5.17 10BASE-T Receive Timing (End of Packet)
Parameter Description Notes Min Typ Max Units
T5.16.1 Carrier Sense Turn On Delay
(TPRD+/− to CRS)
10 Mb/s Nibble mode 1 µs
10 Mb/s Serial mode 1 µs
T5.16.2 Decoder Acquisition Time 10 Mb/s Nibble mode 3.6 µs
10 Mb/s Serial mode 3.2 µs
T5.16.3 Receive Data Latency 10 Mb/s Nibble mode 17.3 bits
10 Mb/s Serial mode 10 bits
T5.16.4 SFD Propagation Delay 10 Mb/s Nibble mode 10 bits
10 Mb/s Serial mode 4.5 bits
Parameter Description Notes Min Typ Max Units
T5.17.1 Carrier Sense Turn Off Delay 10 Mb/s Nibble mode 1.1 us
10 Mb/s Serial mode 450 ns
1
0
1
TPRD+/-
CRS
RX_CLK
RXD
1ST SFD BIT DECODED
RX_DV
T5.16.1
T5.16.
T5.16.
T5.16.4
1
0
1
TPRD+/-
RX_CLK
CRS
IDLE
T5.17.
1