LAN9730 Datasheet, PDF (54/61 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

High-Speed Inter-Chip (HSIC) USB 2.0 to 10/100 Ethernet Controller
Datasheet
RXCLK
(INPUT)
RXD[3:0]
(INPUT)
RXDV, RXER
(INPUT)
t_clkp
t_clkh t_clkl
t_su t_hold
t_su t_hold
t_hold
Figure 6.7 MII Receive Timing
t_hold
t_su
Table 6.19 MII Receive Timing Values
SYMBOL
t_clkp
t_clkh
t_clkl
t_su
t_hold
DESCRIPTION
RXCLK period
RXCLK high time
RXCLK low time
RXD[3:0], RXDV setup time to rising edge of
RXCLK
RXD[3:0], RXDV hold time after rising edge of
RXCLK
MIN
40
t_clkp*0.4
t_clkp*0.4
8.0
9.0
MAX
t_clkp*0.6
t_clkp*0.6
UNITS
ns
ns
ns
ns
NOTES
Note 6.12
ns
Note 6.12
Note 6.12 Timing was designed for a system load between 10 pf and 25 pf.
Revision 1.1 (05-13-13)
54
DATASHEET
SMSC LAN9730/LAN9730i