ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 384

• Manufacturer Part Number: ATXMEGA256A3B-MH
• Description: MCU AVR 256KB FLASH A3B 64-QFN
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3B-MH

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Size: 256KB (128K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATXMEGA256x
• Core: AVR8
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 49
• Number Of Timers: 7
• Operating Supply Voltage: 1.6 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• On-chip Dac: 12 bit, 2 Channel
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATXMEGA256A3B-MU; ATXMEGA256A3B-MU

30.12.3.6
30.12.3.7
30.12.3.8
30.12.3.9
30.12.3.10
8077H–AVR–12/09
Write Page
Erase & Write Page
Erase Application/ Boot Loader/ EEPROM Section
Application / Boot Section CRC
Flash CRC
The BUSY flag in the NVM STATUS register will be set until the operation is finished.
The Write Application Section Page, Write Boot Loader Section Page, Write User Signature Row
and Write EEPROM Page is used to write a loaded Flash/EEPROM page buffer into the
selected memory space
The BUSY flag in the NVM STATUS register will be set until the operation is finished.
The Erase & Write Application Section Page, Erase & Write Boot Loader Section Page, and
Erase & Write EEPROM Page is used to erase one page and then write a loaded
Flash/EEPROM page buffer into that page in the selected memory space, in one atomic
operation.
The BUSY flag in the NVM STATUS register will be set until the operation is finished.
The Erase Application Section, Erase Boot Loader Section and Erase EEPROM Section com-
mand is used to erase the complete section selected.
The BUSY flag in the NVM STATUS register will be set until the operation is finished.
The Application Section CRC and Boot Loader Section CRC commands can be used to verify
the content of the selected section after programming.
The BUSY flag in the NVM STATUS register will be set until the operation is finished. The CRC
checksum will be available in the NVM DATA register.
The Flash CRC command can be used to verify the content of the Flash Program Memory after
programming. The command can be executed independent of the lock bit state.
1. Load the NVM CMD register with Erase Application Section/Boot Loader Section/User
2. Write the selected page by doing a PDI Write. The page is written by addressing any
1. Load the NVM CMD register with Write Application Section/Boot Loader Section/User
2. Write the selected page by doing a PDI Write. The page is written by addressing any
1. Load the NVM CMD register with Erase & Write Application Section/Boot Loader Sec-
2. Write the selected page by doing a PDI Write. The page is written by addressing any
1. Load the NVM CMD register with Erase Application/ Boot/ EEPROM Section command
2. Write the selected section by doing a PDI Write. The section is written by addressing
1. Load the NVM CMD register with Application/ Boot Loader Section CRC command
2. Set the CMDEX bit in the NVM CTRLA register. This requires the timed CCP sequence
Signature Row/EEPROM Page command.
byte location within the page.
Signature Row/EEPROM Page command.
byte location within the page.
tion/User Signature Row/EEPROM Page command.
byte location within the page.
any byte location within the section.
during self-programming.
XMEGA A
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