Rainbow Electronics AT91CAP9S250A User Manual
Page 986
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986
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
47.10.11.2
RMII Mode
Figure 47-16. EMAC RMII Timings
Table 47-47. RMII Mode
Symbol
Parameter
Min (ns)
Max (ns)
EMAC
21
ETXEN toggling from EREFCK rising
2
16
EMAC
22
ETX toggling from EREFCK rising
2
16
EMAC
23
Setup for ERX from EREFCK rising
4
EMAC
24
Hold for ERX from EREFCK rising
2
EMAC
25
Setup for ERXER from EREFCK rising
4
EMAC
26
Hold for ERXER from EREFCK rising
2
EMAC
27
Setup for ECRSDV from EREFCK rising
4
EMAC
28
Hold for ECRSDV from EREFCK rising
2
EREFCK
ETXEN
ETX[1:0]
ERX[1:0]
ERXER
ECRSDV
EMAC
21
EMAC
22
EMAC
23
EMAC
24
EMAC
25
EMAC
26
EMAC
27
EMAC
28
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