ATXMEGA384A1-CU ATMEL [ATMEL Corporation], ATXMEGA384A1-CU Datasheet - Page 10

• Manufacturer Part Number: ATXMEGA384A1-CU
• Description: 8/16-bit XMEGA A1 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

7.4
Figure 7-2.
8067D–AVR–08/08
Byte Address
Data Memory
FFFFFF
5FFF
17FF
1000
2000
6000
FFF
Data Memory Map (Hexadecimal address)
0
External Memory
ATxmega192A1
Internal SRAM
I/O Registers
(0 to 16 MB)
RESERVED
EEPROM
(4KB)
(16K)
(2K)
The Program Flash memory space is divided into Application and Boot sections. Both sections
have dedicated Lock Bits for setting restrictions on write or read/write operations. The Store Pro-
gram Memory (SPM) instruction must reside in the Boot Section when used to write to the Flash
memory.
A third section inside the Application section is referred to as the Application Table section which
has separate Lock bits for storage of write or read/write protection. The Application Table sec-
tion can be used for storing non-volatile data or application software.
Figure 7-1.
The Application Table Section and Boot Section can also be used for general application
software.
The Data Memory consist of the I/O Memory, EEPROM and SRAM memories, all within one lin-
ear address space, see
devices in the family is identical and with empty, reserved memory space for smaller devices.
2EFFF
2FFFF
30FFF
2F000
30000
/
/
/
/
/
Flash Program Memory (Hexadecimal address)
1EFFF
1FFFF
20FFF
1F000
20000
Byte Address
Word Address
Figure 7-2 on page
FFFFFF
/
/
/
/
/
3FFF
17FF
1000
2000
4000
FFF
16FFF
17FFF
18FFF
17000
18000
0
External Memory
ATxmega128A1
Internal SRAM
/
/
/
/
/
I/O Registers
(0 to 16 MB)
RESERVED
EEPROM
10FFF
10000
(4KB)
EFFF
FFFF
(2K)
(8K)
F000
10. To simplify development, the memory map for all
/
/
/
/
/
7FFF
77FF
87FF
7800
8000
0
Byte Address
(384K/256K/192K/128K/64K)
Application Table Section
Application Section
FFFFFF
(8K/8K/8K/8K/4K)
(8K/8K/8K/8K/4K)
2FFF
Boot Section
17FF
1000
2000
3000
FFF
0
XMEGA A1
...
External Memory
ATxmega64A1
Internal SRAM
I/O Registers
(0 to 16 MB)
RESERVED
EEPROM
(4KB)
(2K)
(4K)
10