ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 56
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
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10.5.3
10.5.3.1
56
SAM3S Preliminary
Behavior of memory accesses
Additional memory access constraints for shared memory
< Means that accesses are observed in program order, that is, A1 is always observed before A2.
The behavior of accesses to each region in the memory map is:
Table 10-4.
1.
The Code, SRAM, and external RAM regions can hold programs. However, ARM recommends
that programs always use the Code region. This is because the processor has separate buses
that enable instruction fetches and data accesses to occur simultaneously.
The MPU can override the default memory access behavior described in this section. For more
information, see
When a system includes shared memory, some memory regions have additional access con-
straints, and some regions are subdivided, as
Table 10-5.
Address
range
0x00000000-
0x1FFFFFFF
0x20000000-
0x3FFFFFFF
0x40000000-
0x5FFFFFFF
0x60000000-
0x9FFFFFFF
0xA0000000-
0xDFFFFFFF
0xE0000000-
0xE00FFFFF
0xE0100000-
0xFFFFFFFF
Address range
0x00000000-
0x1FFFFFFF
0x20000000-
0x3FFFFFFF
0x40000000-
0x5FFFFFFF
See
“Memory regions, types and attributes” on page 54
Memory access behavior
Memory region share ability policies
Memory
region
Code
SRAM
Peripheral
External
RAM
External
device
Private
Peripheral
Bus
Reserved
“Memory protection unit” on page
Memory region
Code
SRAM
Peripheral
Memory
type
Normal
Normal
Device
Normal
Device
Strongly-
ordered
Device
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
XN
-
-
XN
-
XN
XN
XN
Memory type
Normal
Normal
Device
Table 10-5
Description
Executable region for program code. You can also put
data here.
Executable region for data. You can also put code
here.
This region includes bit band and bit band alias areas,
see
This region includes bit band and bit band alias areas,
see
Executable region for data.
External Device memory
This region includes the NVIC, System timer, and
system control block.
Reserved
Table 10-6 on page
Table 10-6 on page
196.
(1)
(1)
(1)
shows:
for more information.
Shareability
-
-
-
58.
58.
6500C–ATARM–8-Feb-11
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