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| LAN8810 Datasheet, PDF (71/83 Pages) Microchip Technology – GMII 10/100/1000 Ethernet Transceiver | |||
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LAN8810/LAN8810I
FIGURE 5-7:
MII RECEIVE TIMING
RXCLK
RXD[3:0]
RXDV
tclkp
tclkh tclkl
tval
tval
thold
thold
tval
TABLE 5-16: MII RECEIVE TIMING VALUES
Symbol
tclkp
tclkh
tclkl
tval
thold
Description
RXCLK period
RXCLK high time
RXCLK low time
RXD[3:0], RXDV output valid from rising edge of
RXCLK
RXD[3:0], RXDV output hold from rising edge of
RXCLK
Min
Note 5-3
tclkp*0.4
tclkp*0.4
10.0
Max
tclkp*0.6
tclkp*0.6
28.0
Units
ns
ns
ns
ns
ns
Notes
Note 5-4
Note 5-4
Note 5-3
Note 5-4
40ns for 100BASE-TX operation, 400ns for 10BASE-T operation.
Timing was designed for system load between 10 pf and 25 pf.
DS00001870B-page 71
ï£ 2009-2015 Microchip Technology Inc.
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