Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 Data Sheet
Product codes
ATEVK1105
785
AT32UC3A
Figure 38-11.
Ethernet MAC RMII Mode
38.13 Flash Characteristics
The following table gives the device maximum operating frequency depending on the field FWS
of the Flash FSR register. This field defines the number of wait states required to access the
Flash Memory.
Table 38-33.
Ethernet MAC RMII Specific Signals
Symbol
Parameter
Min (ns)
Max (ns)
EMAC
21
ETXEN toggling from EREFCK rising
7
14.5
EMAC
22
ETX toggling from EREFCK rising
7
14.7
EMAC
23
Setup for ERX from EREFCK
1.5
EMAC
24
Hold for ERX from EREFCK
0
EMAC
25
Setup for ERXER from EREFCK
1.5
EMAC
26
Hold for ERXER from EREFCK
0
EMAC
27
Setup for ECRSDV from EREFCK
1.5
EMAC
28
Hold for ECRSDV from EREFCK
0
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
Table 38-34.
Flash Wait States
FWS
Read Operations
Maximum Operating Frequency (MHz)
0
1 cycle
33
1
2 cycles
66
32058K
AVR32-01/12