
Micrel, Inc.
KSZ8873MLL/FLL/RLL
September 20, 2013
104
Revision 1.6
RMII Timing
REFCLK
tcyc
MTXD[1:0]
MTXEN
t1
t2
Transmit
Timing
Figure 21. RMII Timing
Data Received from RMII
REFCLK
tcyc
tod
MRXD[1:0]
MRXDV
Receive
Timing
Figure 22. RMII Timing Parameters
Table 26. RMII Timing Parameters
Symbols
Parameters
Min.
Typ.
Max.
Unit
tCYC
Clock Cycle
20
ns
t1
Setup Time
4
ns
t2
Hold Time
2
ns
tOD
Output Delay
6
16
ns