AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 18
![no-image](/images/no-image-200.jpg)
AT90USB1286-16MU
Manufacturer Part Number
AT90USB1286-16MU
Description
Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT90USB1286-16MU.pdf
(434 pages)
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5. AVR AT90USB64/128 Memories
5.1
18
In-System Reprogrammable Flash Program Memory
AT90USB64/128
This section describes the different memories in the AT90USB64/128. The AVR architecture has
two main memory spaces, the Data Memory and the Program Memory space. In addition, the
AT90USB64/128 features an EEPROM Memory for data storage. All three memory spaces are
linear and regular.
Table 5-1.
Notes:
The AT90USB64/128 contains 128K bytes On-chip In-System Reprogrammable Flash memory
for program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash is organized as
64K x 16. For software security, the Flash Program memory space is divided into two sections,
Boot Program section and Application Program section.
The Flash memory has an endurance of at least 100,000 write/erase cycles. The
AT90USB64/128 Program Counter (PC) is 16 bits wide, thus addressing the 128K program
Memory
Flash
32
Registers
I/O
Registers
Ext I/O
Registers
Internal
SRAM
External
Memory
EEPROM
1. Byte address.
2. Word (16-bit) address.
Size
Start Address
End Address
Size
Start Address
End Address
Size
Start Address
End Address
Size
Start Address
End Address
Size
Start Address
End Address
Size
Start Address
End Address
Size
Start Address
End Address
Memory Mapping.
Mnemonic
ISRAM start
ISRAM size
ISRAM end
XMem start
XMem size
XMem end
Flash size
Flash end
E2 size
E2 end
-
-
-
-
-
-
-
-
-
-
-
AT90USB64
0-64 K bytes
0x0FFFF
64 K bytes
160 bytes
0x7FFF
4 K bytes
2 K bytes
0x00000
32 bytes
64 bytes
0xFFFF
0x001F
0x005F
0x00FF
0x10FF
0x07FF
0x0000
0x0020
0x0060
0x0100
0x1100
0x0000
(2)
(1)
AT90USB128
128K bytes
0x1FFFF
0xFFFF
8 K bytes
4K bytes
0x0FFF
0x20FF
0x2100
(2)
(1)
7593A–AVR–02/06
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