atxmega128a4-mu ATMEL Corporation, atxmega128a4-mu Datasheet - Page 8

• Manufacturer Part Number: atxmega128a4-mu
• Description: Atxmega16a4 8/16-bit Avr Xmega Microcontroller
• Manufacturer: ATMEL Corporation

7.4
7.5
Figure 7-2.
8
Byte Address
SRAM Data Memory
EEPROM Data Memory
FFFFFF
ATxmega A4
2FFF
17FF
1000
2000
3000
FFF
Data Memory Map (Hexadecimal address)
0
External Memory
ATxmega64A4
Internal SRAM
I/O Registers
(0 to 16 MB)
RESERVED
EEPROM
(4KB)
(2K)
(4K)
Figure 7-1.
The Application Table- and Boot sections can also be used for general application software.
The XMEGA A4 has internal SRAM memory for data storage. The Memory Map for the devices
in the family resemble each other, see
The XMEGA A4 has internal EEPROM memory for non-volatile data storage. It is addressable
either in a separate data space or it can be memory mapped the normal data space. The
EEPROM memory supports both byte and page access.
The Internal SRAM and EEPROM memory spaces start at the same address in all devices, see
Table 7-2 on page
10FFF
10000
EFFF
FFFF
F000
/
/
/
/
/
Flash Program Memory (Hexadecimal address)
7FFF
77FF
87FF
7800
8000
Byte Address
8. The Reserved memory space is empty.
Word Address
FFFFFF
/
/
/
/
/
2FFF
17FF
1000
2000
3000
FFF
3FFF
37FF
47FF
3800
4000
0
External Memory
ATxmega32A4
Internal SRAM
/
/
/
/
/
I/O Registers
(0 to 16 MB)
Table 7-2 on page
RESERVED
EEPROM
1FFF
17FF
27FF
1800
2000
(4KB)
(2K)
(4K)
0
Application Table Section
(128K/64K/32K/16K)
Application Section
(4K/4K/4K/4K)
(4K/4K/4K/4K)
Boot Section
8.
Byte Address
...
FFFFFF
17FF
27FF
1000
2000
2800
FFF
0
External Memory
ATxmega16A4
Internal SRAM
I/O Registers
(0 to 16 MB)
RESERVED
EEPROM
8069A–AVR–02/08
(4KB)
(1K)
(2K)