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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i 59 Revision 1.0 (05-28-09)
DATASHEET
6.2.2.2 10M RMII Transmit Timing (50MHz REF_CLK IN)
Figure 6.5 10M RMII Transmit Timing Diagram (50MHz REF_CLK IN)
Table 6.5 10M RMII Transmit Timing Values (50MHz REF_CLK IN)
PARAMETER DESCRIPTION MIN TYP MAX UNITS NOTES
T10.1 Transmit signals required setup to
rising edge of CLKIN
4ns
T10.2 Transmit signals required hold
after rising edge of CLKIN
2ns
CLKIN frequency 50 MHz
Clock In -
CLKIN
Data In -
TXD[1:0]
T
10.1
TX_EN
T
10.2
Valid Data