ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 434

• Manufacturer Part Number: ATxmega32A4U
• Manufacturer: Atmel Corporation

Specifications of ATxmega32A4U

• 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 Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 7
• Twi (i2c): 2
• Uart: 5
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• 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: 5
• Output Compare Channels: 16
• Input Capture Channels: 16
• Pwm Channels: 16
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 33-2.
Notes:
33.11.2.1
8331A–AVR–07/11
CMD[6:0]
0x00
Flash Page Buffer
0x23
0x26
Flash
0x2B
0x02E
0x2F
0x3A
Application Section
0x20
0x22
0x24
0x25
0x38
Boot Loader Section
0x2A
0x2C
0x2D
0x39
User Signature Row
0x01
0x18
0x1A
Calibration Row
0x02
(4)
(4)
1. The Flash Range CRC command used byte addressing of the Flash.
2. Will depend on the flash section (Application or Boot Loader) that is actually addressed.
3. This command is qualified with the Lock Bits, and requires that the Boot Lock Bits are unprogrammed.
4. When using a command that changes the normal behavior of the LPM command; READ_USER_SIG_ROW and
Group Configuration
NO_OPERATION
LOAD_FLASH_BUFFER
ERASE_FLASH_BUFFER
ERASE_FLASH_PAGE
WRITE_FLASH_PAGE
ERASE_WRITE_FLASH_PAGE
FLASH_RANGE_CRC
ERASE_APP
ERASE_APP_PAGE
WRITE_APP_PAGE
ERASE_WRITE_APP_PAGE
APP_CRC
ERASE_BOOT_PAGE
WRITE_BOOT_PAGE
ERASE_WRITE_BOOT_PAGE
BOOT_CRC
READ_USER_SIG_ROW
ERASE_USER_SIG_ROW
WRITE_USER_SIG_ROW
READ_CALIB_ROW
READ_CALIB_ROW, it is recommended to disable interrupt to ensure correct execution of the LPM instruction.
Read Flash
Flash Self-Programming Commands
The (E)LPM instruction is used to read one byte from the Flash memory.
The destination register will be loaded during the execution of the LPM instruction.
(3)
1. Load the Z-pointer with the byte address to read.
2. Load the NVM Command register (NVM CMD) with the No Operation command.
3. Execute the LPM instruction.
Description
No Operation / Read Flash
Load Flash Page Buffer
Erase Flash Page Buffer
Erase Flash Page
Write Flash Page
Erase & Write Flash Page
Flash Range CRC
Erase Application Section
Erase Application Section Page
Write Application Section Page
Erase & Write Application Section Page
Application Section CRC
Erase Boot Loader Section Page
Write Boot Loader Section Page
Erase & Write Boot Loader Section Page
Boot Loader Section CRC
Read User Signature Row
Erase User Signature Row
Write User Signature Row
Read Calibration Row
Trigger
-/(E)LPM
SPM
CMDEX
SPM
SPM
SPM
CMDEX
SPM
SPM
SPM
SPM
CMDEX
SPM
SPM
SPM
CMDEX
LPM
SPM
SPM
LPM
CPU
Halted
N/Y
N/Y
N/Y
Atmel AVR XMEGA AU
-/N
N
N
Y
Y
N
N
N
Y
Y
Y
Y
Y
N
Y
Y
N
(2)
(2)
(2)
NVM
Busy
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
Change
Protected
-/N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
Address
pointer
-/ Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
DATA/ADDR
Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
Z-pointer
-
-
-
-
(1)
Data
register
R1:R0
DATA
DATA
DATA
-/Rd
Rd
Rd
-
-
-
-
-
-
-
-
-
-
-
-
-
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