ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 19

• Manufacturer Part Number: ATxmega32D4
• Manufacturer: Atmel Corporation

Specifications of ATxmega32D4

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• 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): 4
• Eeprom (bytes): 1024
• 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

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