AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 115
AT91SAM7S256D-AU
Manufacturer Part Number
AT91SAM7S256D-AU
Description
ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
Manufacturer
Atmel
Series
SAM7S256r
Datasheet
1.AT91SAM7S256D-AU.pdf
(775 pages)
Specifications of AT91SAM7S256D-AU
Rohs
yes
Core
ARM
Processor Series
AT91SAM
Data Bus Width
16 bit/32 bit
Maximum Clock Frequency
55 MHz
Program Memory Size
256 KB
Data Ram Size
64 KB
On-chip Adc
Yes
Operating Supply Voltage
3 V to 3.6 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
LQFP-64
Mounting Style
SMD/SMT
Interface Type
2-Wire, I2S, SPI, USART
Length
7 mm
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7S256D-AU
Manufacturer:
ATMEL
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101
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19.3.1
Register Name:
Access Type:
Offset: (EFC0)
Offset: (EFC1)
• 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:
• FMCN: Flash Microsecond Cycle Number
NEBP
31
23
15
–
–
7
MC Flash Mode Register
FWS
0
1
2
3
30
22
14
MC_FMR
Read-write
0x60
0x70
–
–
6
–
29
21
13
–
–
5
–
28
20
12
–
–
4
–
Read Operations
2 cycles
3 cycles
4 cycles
1 cycle
FMCN
PROGE
27
19
11
–
–
3
LOCKE
26
18
10
–
–
2
SAM7S Series [DATASHEET]
Write Operations
6175M–ATARM–26-Oct-12
25
17
2 cycles
3 cycles
4 cycles
4 cycles
–
9
1
–
FWS
FRDY
24
16
–
8
0
115
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