SAM7X128_14 Datasheet, PDF (599/662 Pages) ATMEL Corporation – ARM-based Flash MCU

38.8.5 Embedded Flash Characteristics
The maximum operating frequency is given in Table 38-25 but is limited by the Embedded Flash access time when the processor
is fetching code out of it. Table 38-25 gives the device maximum operating frequency depending on the field FWS of the
MC_FMR register. This field defines the number of wait states required to access the Embedded Flash Memory.
Table 38-25.
Embedded Flash Wait States
FWS
Read Operations
0
1 cycle
1
2 cycles
2
3 cycles
3
4 cycles
Maximum Operating Frequency (MHz)
30
55
55
55
Table 38-26. AC Flash Characteristics
Parameter
Conditions
Program Cycle Time
per page including auto-erase
per page without auto-erase
Full Chip Erase
Min
Max
Units
6
ms
3
ms
15
ms
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
599