Texas Instruments 180 to 100 Pin DIMM Adapter TMDSADAP180TO100 TMDSADAP180TO100 Datenbogen
Produktcode
TMDSADAP180TO100
2
3
1
MIIRXCK
2
3
1
MIITXCK
SPRS825C – OCTOBER 2012 – REVISED FEBRUARY 2014
7.2.6.3
EMAC Electrical Data and Timing
Table 7-24. Timing Requirements for MIITXCK (see
100 Mbps
10 Mbps
NO.
UNIT
MIN
MAX
MIN
MAX
Cycle time, MIITXCK (25 MHz)
40
40
1
t
c(TXCK)
ns
Cycle time, MIITXCK (2.5 MHz)
400
400
2
t
w(TXCKH)
Pulse duration, MIITXCK high
16
24
196
204
ns
3
t
w(TXCKL)
Pulse duration, MIITXCK low
16
24
196
204
ns
Figure 7-27. 100/10Mb/s MII Transmit Clock Timing
Table 7-25. Timing Requirements for MIIRXCK (see
100 Mbps
10 Mbps
NO.
UNIT
MIN
MAX
MIN
MAX
Cycle time, MIIRXCK (25 MHz)
40
40
1
t
c(RXCK)
ns
Cycle time, MIIRXCK (2.5 MHz)
400
400
2
t
w(RXCKH)
Pulse duration, MIIRXCK high
16
24
196
204
ns
3
t
w(RXCKL)
Pulse duration, MIIRXCK low
16
24
196
204
ns
Figure 7-28. 100/10Mb/s MII Receive Clock Timing
208
Peripheral Information and Timings
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