ATXMEGA32A4(2008) Просмотр технического описания (PDF) - Atmel Corporation
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ATXMEGA32A4 Datasheet PDF : 74 Pages
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XMEGA A4
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. Flash Program Memory (Hexadecimal address)
Word Address
0
Application Section
(128K/64K/32K/16K)
...
EFFF /
77FF / 37FF / 17FF
F000 /
FFFF /
10000 /
10FFF /
7800 /
7FFF /
8000 /
87FF /
3800 / 1800
3FFF / 1FFF
4000 / 2000
47FF / 27FF
Application Table Section
(4K/4K/4K/4K)
Boot Section
(4K/4K/4K/4K)
The Application Table Section and Boot Section can also be used for general application
software.
9
8069D–AVR–08/08
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