SAM7S256_14 Datasheet, PDF (115/775 Pages) ATMEL Corporation – ARM-based Flash MCU

19.3.1 MC Flash Mode Register
Register Name:
MC_FMR
Access Type:
Read-write
Offset: (EFC0)
0x60
Offset: (EFC1)
0x70
31
30
29
28
27
–
–
–
–
–
23
22
21
20
19
FMCN
15
14
13
12
11
–
–
–
–
–
7
6
5
4
3
NEBP
–
–
–
PROGE
• FRDY: Flash Ready Interrupt Enable
0: Flash Ready does not generate an interrupt.
1: Flash Ready generates an interrupt.
• LOCKE: Lock Error Interrupt Enable
0: Lock Error does not generate an interrupt.
1: Lock Error generates an interrupt.
• PROGE: Programming Error Interrupt Enable
0: Programming Error does not generate an interrupt.
1: Programming Error generates an interrupt.
• NEBP: No Erase Before Programming
0: A page erase is performed before programming.
1: No erase is performed before programming.
• FWS: Flash Wait State
This field defines the number of wait states for read and write operations:
FWS
0
1
2
3
Read Operations
1 cycle
2 cycles
3 cycles
4 cycles
26
–
18
10
–
2
LOCKE
25
24
–
–
17
16
9
8
FWS
1
0
–
FRDY
Write Operations
2 cycles
3 cycles
4 cycles
4 cycles
• FMCN: Flash Microsecond Cycle Number
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
115