Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Hoja De Datos
Los códigos de productos
ATSAM4S-WPIR-RD
69
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
12.4.2 Memory Model
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.
Figure 12-3.
Memory Map
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.
This memory mapping is generic to ARM Cortex-M4 products. To get the specific memory mapping of this product,
This memory mapping is generic to ARM Cortex-M4 products. To get the specific memory mapping of this product,
refer to the Memories section of the datasheet.
Vendor-specific
memory
External device
External RAM
Peripheral
SRAM
Code
0xFFFFFFFF
Private peripheral
bus
0xE0100000
0xE00FFFFF
0xE00FFFFF
0x9FFFFFFF
0xA0000000
0x5FFFFFFF
0x60000000
0x3FFFFFFF
0x40000000
0x1FFFFFFF
0x20000000
0x00000000
0x40000000
32 MB Bit-band alias
0x400FFFFF
0x42000000
0x43FFFFFF
1 MB Bit-band region
32 MB Bit-band alias
0x20000000
0x200FFFFF
0x22000000
0x23FFFFFF
1.0 GB
1.0 GB
0.5 GB
0.5 GB
0.5 GB
0x DFFFFFFF
0xE000 0000
1.0 MB
511 MB
1 MB Bit-band region