Datasheet

____________________________________________________ DS34T101, DS34T102, DS34T104, DS34T108
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Figure 14-23. MII Interface Input Signal Timing
CLK_MII_RX
MII_RXD,MII_RX_DV,MII_RX_ERR
T159 T160
T158 T180
Table 14-13. RMII Interface AC Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS
CLK_MII_TX Rising to MII_TXD[3:2], MII_TX_EN Output
Hold
T162 2 ns
CLK_MII_TX Rising to MII_TXD[3:2], MII_TX_EN Output
Valid
T163 13.5 ns
MII_RXD[3:2], MII_RX_DV, MII_RX_ERR Input Setup
Prior to CLK_MII_TX Rising
T164 7 ns
MII_RXD(3:2], MII_RX_DV, MII_RX_ERR Input Hold
After CLK_MII_TX Rising
T165 0 ns
Table 14-14. RMII Clock Timing
PARAMETER SYMBOL MIN TYP MAX UNITS
CLK_MII_TX Frequency T161 50 MHz
CLK_MII_TX Duty Cycle T183 40 60 %
Figure 14-24. RMII Interface Output Signal Timing
CLK_MII_TX(RMII_REF_CLK)
MII_TXD(3:2),MII_TX_EN
T162
T163
T161
Figure 14-25. RMII Interface Input Signal Timing
CLK_MII_TX(RMII_REF_CLK)
MII_RXD(3:2),MII_RX_DV,MII_RX_ERR
T164 T165
T183
Table 14-15. SSMII Interface AC Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS
CLK_SSMII_TX Rising to MII_TXD[1:0] Output T172 1.5 5 ns
MII_RXD[1:0] Input Setup Prior to CLK_MII_RX Rising T175 1.5 ns
MII_RXD[1:0] Input Hold After CLK_MII_RX Rising T176 1.3 ns
Table 14-16. SSMII Clock Timing
PARAMETER SYMBOL MIN TYP MAX UNITS
CLK_SSMII_TX Frequency T171 125 MHz
CLK_SSMII_TX Duty Cycle T189 40 60 %
CLK_MII_RX Frequency T171 125 MHz
CLK_MII_RX Duty Cycle T189 40 60 %