ATxmega64B3 Atmel Corporation, ATxmega64B3 Datasheet - Page 399

• Manufacturer Part Number: ATxmega64B3
• Manufacturer: Atmel Corporation

Specifications of ATxmega64B3

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 4
• 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: 2
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

29.12.1
29.12.2
8291A–AVR–10/11
Enabling External Programming Interface
NVM Programming
Figure 29-3. Memory map for PDI accessing the data and program memories.
NVM programming from the PDI requires enabling using the following steps:
When the NVMEN bit in the PDI STATUS register is set, the NVM interface is enabled and
active from the PDI.
When the PDI NVM interface is enabled, all memories in the device are memory mapped in the
PDI address space. The PDI controller does not need to access the NVM controller's address or
1. Load the RESET register in the PDI with 0x59.
2. Load the NVM key in the PDI.
3. Poll NVMEN in the PDI status register (PDI STATUS) until NVMEN is set.
FLASH_BASE
EPPROM_BASE
FUSE_BASE
DATAMEM_BASE
APP_BASE
BOOT_BASE
PROD_SIGNATURE_BASE = 0x008E0200
USER_SIGNATURE_BASE = 0x008E0400
= 0x0800000
= 0x08C0000
= 0x08F0020
= 0x1000000
= FLASH_BASE
= FLASH_BASE + SIZE_APPL
TOP=0x1FFFFFF
0x1000000
0x08F0020
0x08E0200
0x08C1000
0x08C0000
0x0800000
0x0000000
Atmel AVR XMEGA B
(mapped IO/SRAM)
SIGNATURE ROW
BOOT SECTION
APPLICATION
DATAMEM
SECTION
EEPROM
FUSES
1 BYTE
16 MB
16 MB
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