AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 19
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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5.2
7593A–AVR–02/06
SRAM Data Memory
memory locations. The operation of Boot Program section and associated Boot Lock bits for
software protection are described in detail in
Programming” on page 368
using the SPI pins or the JTAG interface.
Constant tables can be allocated within the entire program memory address space (see the LPM
– Load Program Memory instruction description and ELPM - Extended Load Program Memory
instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
Figure 5-1.
Figure 5-2
The AT90USB64/128 is a complex microcontroller with more peripheral units than can be sup-
ported within the 64 location reserved in the Opcode for the IN and OUT instructions. For the
Extended I/O space from $060 - $1FF in SRAM, only the ST/STS/STD and LD/LDS/LDD instruc-
tions can be used.
The first 4,608/8,704 Data Memory locations address both the Register File, the I/O Memory,
Extended I/O Memory, and the internal data SRAM. The first 32 locations address the Register
file, the next 64 location the standard I/O Memory, then 416 locations of Extended I/O memory
and the next 8,192 locations address the internal data SRAM.
shows how the AT90USB64/128 SRAM Memory is organized.
14.
Program Memory Map
Application Flash Section
contains a detailed description on Flash data serial downloading
Boot Flash Section
Program Memory
“Memory Programming” on page
0x00000
Flash End
AT90USB64/128
“Instruction Execution Tim-
368.
“Memory
19
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