SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 67

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

11.5
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Memory model
The following sections give more information about the CMSIS:
This section describes the processor memory map, the behavior of memory accesses, and the
bit-banding features. The processor has a fixed memory map that provides up to 4GB of
addressable memory. The memory map is:
The regions for SRAM and peripherals include bit-band regions. Bit-banding provides atomic
operations to bit data, see
The processor reserves regions of the Private peripheral bus (PPB) address range for core
peripheral registers, see
This memory mapping is generic to ARM Cortex-M3 products. To get the specific memory map-
ping of this product, refer to the Memories section of the datasheet.
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•
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“Power management programming hints” on page 86
“Intrinsic functions” on page 90
“The CMSIS mapping of the Cortex-M3 NVIC registers” on page 153
“NVIC programming hints” on page
32MB
1MB
1MB
32MB
Bit band region
Bit band region
Bit band alias
Bit band alias
“About the Cortex-M3 peripherals” on page
“Bit-banding” on page
164.
71.
Private peripheral
Vendor-specific
External device
External RAM
Peripheral
memory
SRAM
Code
bus
152.
511MB
1.0MB
1.0GB
1.0GB
0.5GB
0.5GB
0.5GB
SAM3X/A
SAM3X/A
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