ATXMEGA384A1-CU ATMEL [ATMEL Corporation], ATXMEGA384A1-CU Datasheet - Page 13

• Manufacturer Part Number: ATXMEGA384A1-CU
• Description: 8/16-bit XMEGA A1 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

7.5
7.6
8067D–AVR–08/08
Calibration Row
User Signature Row
The Calibration Row is a seperate memory section for factory programmed data. It contains cal-
ibration data for functions such as oscillators, device ID, and a factory programmed serial
number that is unique for each device. The device ID for the available XMEGA A1 devices is
shown in
the corresponding module or peripheral unit during reset. The Calibration Row can not be written
or erased. It can be read from application software and external programming.
Table 7-1.
The User Signature Row is a seperate memory section that is fully accessible (read and write)
from application software and external programming. The User Signature Row is one flash page
in size, and is meant for static user parameter storage, such as calibration data, custom serial
numbers, random number seeds etc. This section is not erased by Chip Erase, and requires a
dedicated erase command. This ensures parameter storage during multiple program/erase ses-
sion and On-Chip Debug sessions.
Table 7-1 on page
ATxmega128A1
ATxmega192A1
ATxmega256A1
ATxmega384A1
ATxmega64A1
Device ID bytes for XMEGA A1 devices.
Device
13. Some of the calibration values will be automatically loaded to
Byte 2
TBD
4E
4C
4E
46
Device ID bytes
Byte 1
TBD
96
97
97
98
XMEGA A1
Byte 0
TBD
1E
1E
1E
1E
13