AT32UC3A0512_08 Datasheet, PDF (58/86 Pages) ATMEL Corporation – AVR32 32-Bit Microcontroller

AT32UC3A
Table 12-26. Ethernet MAC RMII Specific Signals
Symbol Parameter
EMAC₂₁
EMAC₂₂
EMAC₂₃
EMAC₂₄
EMAC₂₅
EMAC₂₆
EMAC₂₇
EMAC₂₈
ETXEN toggling from EREFCK rising
ETX toggling from EREFCK rising
Setup for ERX from EREFCK
Hold for ERX from EREFCK
Setup for ERXER from EREFCK
Hold for ERXER from EREFCK
Setup for ECRSDV from EREFCK
Hold for ECRSDV from EREFCK
Figure 12-11. Ethernet MAC RMII Mode
EREFCK
ETXEN
ETX[1:0]
ERX[1:0]
ERXER
ECRSDV
EMAC₂₃
EMAC₂₄
EMAC₂₅
EMAC₂₆
EMAC₂₇
EMAC₂₈
Min (ns)
7
7
1.5
0
1.5
0
1.5
0
Max (ns)
14.5
14.7
EMAC₂₁
EMAC₂₂
12.13 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 12-27. Flash Wait States
FWS
0
1
Read Operations
1 cycle
2 cycles
Maximum Operating Frequency (MHz)
33
66
58
32058FS–AVR32–08/08