Datasheet

1268
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
Figure 47-24.minimum and maximum access time of EMAC output signals
47.18.4.3 RMII Mode
Note: 1. See Note
(4)
of Table 47-43.
Figure 47-25.EMAC RMII Mode Signals
EMDC
EMDIO
EMAC
3 max
EMAC
1
EMAC
2
EMAC
4
EMAC
5
EMAC
3 min
Table 47-44. EMAC RMII Timings
Symbol Parameter Min (ns) Max (ns)
EMAC
21
ETXEN toggling from EREFCK rising 2
(1)
16
(1)
EMAC
22
ETX toggling from EREFCK rising 2
(1)
16
(1)
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