ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 277
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ATxmega32D4
Manufacturer Part Number
ATxmega32D4
Description
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega32D4-AU
Manufacturer:
Atmel
Quantity:
123
Part Number:
ATxmega32D4-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATxmega32D4-CU
Manufacturer:
Maxim
Quantity:
71
Company:
Part Number:
ATxmega32D4-MH
Manufacturer:
Atmel
Quantity:
1 910
Company:
Part Number:
ATxmega32D4-MH
Manufacturer:
Atmel
Quantity:
1 704
Part Number:
ATxmega32D4-MH
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
23.10.1.1
Table 23-1.
8210B–AVR–04/10
Section being addressed by Z-pointer
during the programming?
Application Section (RWW)
Boot Loader Section (NRWW)
User Signature Row section (NRWW)
Application and Boot Loader sections
Summary of RWW and NRWW functionality
The Application and Boot Loader sections are different when it comes to self-programming. The
Application Section is Read-While-Write (RWW) while the Boot Loader Section is No Read-
While-Write (NRWW). Here “Read-While-Write” refers to the section being programmed (erased
or written), not the section being read during a Boot Loader software update. Whether the CPU
can continue to run and execute code or is halted to stop program execution during a Boot
Loader software update is depending on the Flash address being programmed:
The User Signature Row section is NRWW, hence erasing or writing this section has the same
properties as for the Boot Loader Section.
During an on-going programming, the software must ensure that the Application Section is not
accessed. Doing this will halt the program execution from the CPU. The user software can not
read data located in the Application Section during a Boot Loader software operation.
• When erasing or writing a page located inside the Application Section (RWW), the Boot
• When erasing or writing a page located inside the Boot Loader Section (NRWW), the CPU is
Loader Section (NRWW) can be read during the operation, thus the CPU can run and
execute code from the Boot Loader Section (NRWW).
halted during the entire operation and code cannot execute.
Section that can be read during
programming
Boot Loader Section (NRWW)
None
None
CPU Halted
No
Yes
Yes
Read-While-Write
Supported
Yes
No
No
XMEGA D
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