ATxmega128D4 Atmel Corporation, ATxmega128D4 Datasheet - Page 19
ATxmega128D4
Manufacturer Part Number
ATxmega128D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128D4
Flash (kbytes)
128 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Speed
No
Usb Interface
No
Spi
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
8
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Part Number
Manufacturer
Quantity
Price
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Company:
Part Number:
ATxmega128D4-U
Manufacturer:
ATMEL
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Manufacturer:
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Quantity:
20 000
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4.3.1
4.3.2
8210B–AVR–04/10
Application Section
Application Table section
All AVR instructions are 16 or 32 bits wide, and each Flash location is 16 bits wide. The Flash
memory in XMEGA is organized in two main sections, the Application Section and the Boot
Loader section, as shown in
but device dependent. These two sections have separate lock bits and can have different level
of protection. The Store Program Memory (SPM) instruction used to write to the Flash from the
application software, will only operate when executed from the Boot Loader Section.
The Application Section contains an Application Table Section with separate lock settings. This
can be used for safe storage of Non-volatile data in the Program Memory.
Figure 4-1.
The Application section is the section of the Flash that is used for storing the executable applica-
tion code. The protection level for the Application section can be selected by the Boot Lock Bits
for this section. The Application section can not store any Boot Loader code since the SPM
instruction cannot be executed from the Application section.
The Application Table section is a part of the Application Section of the Flash that can be used
for storing data. The size is identical to the Boot Loader Section. The protection level for the
Application Table section can be selected by the Boot Lock Bits for this section. The possibilities
Flash Memory sections
Boot Loader Flash
Figure 4-1 on page
Application Table
Application Flash
Flash Section
Section
Section
19. The sizes of the different sections are fixed,
0x000000
End RWW, End Application
Start NRWW, Start Boot Loader
Flashend
XMEGA D
19
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