Datasheet

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DP83856
6.0 Electrical Specifications (Continued)
6.6 100 Mb/s Timing
6.6.1 100 Mb/s MII Transmit Timing
6.6.2 100 Mb/s MII Receive Timing
Parameter Description Notes Min Typ Max Units
T19 TXD[3:0], TX_EN and TX_ER Setup to ↑ TX_CLK 10 ns
T20 TXD[3:0], TX_EN and TX_ER Hold from ↑ TX_CLK -1 ns
T21 TX_CLK Duty Cycle 40 60 %
T22 MII to MDI latency 136 ns
TX_CLK
T19
T20
TXD[3:0], TX_EN,
TX_ER
T21
Begin of Frame
T22
MDI
Parameter Description Notes Min Typ Max Units
T23 RX_CLK Duty Cycle 35 65 %
T24 ↑ RX_CLK to RXD[3:0], RX_DV, RX_ER Delay 10 30 ns
T25 MDI to MII latency 288 ns
T23
RX_CLK
RXD[3:0]
RX_DV
RX_ER
Valid Data
T24
Begin of Frame
MDI
T25