In-System Reprogrammable Flash Program Memory - Microchip Technology megaAVR 0 Series Manual

Figure 5-1. Memory Map: Flash 48 KB, Internal SRAM 6 KB, EEPROM 256B
Code space
0x0000
5.3

In-System Reprogrammable Flash Program Memory

The ATmega3208/3209/4808/4809 contains up to 48 KB On-Chip In-System Reprogrammable Flash
memory for program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash is organized
with 16-bit data width. For write protection, the Flash Program memory space can be divided into three
sections: Boot Loader section, Application code section, and Application data section. Code placed in one
section may be restricted from writing to addresses in other sections, see the NVMCTRL documentation
for more details.
©
2018 Microchip Technology Inc.
Flash code
48KB
Datasheet Preliminary
megaAVR
Data space
64 I/O Registers
960 Ext I/O Registers
NVM I/O Registers and
data
EEPROM 256B
(Reserved)
Internal SRAM
6KB
Flash code
48KB
®
0-Series
Memories
0x0000 – 0x003F
0x0040 – 0x0FFF
0x1000 – 0x13FF
0x1400
0x1500
0x2800
0x3FFF
0x4000
0xFFFF
DS40002015A-page 18