AT32UC3B1256-Z1UR Atmel, AT32UC3B1256-Z1UR Datasheet - Page 483

• Manufacturer Part Number: AT32UC3B1256-Z1UR
• Description: MCU AVR32 256K FLASH 48-QFN
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B1256-Z1UR

• Package / Case: 48-QFN Exposed Pad
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 28
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

22.8.4
32059J–12/2010
USB Pipe/Endpoint n FIFO Data Register (USBFIFOnDATA)
The application has access to the physical DPRAM reserved for the Endpoint/Pipe through a
64KB virtual address space. The application can access anywhere in the virtual 64KB segment
(linearly or fixedly) as the DPRAM Fifo address increment is fully handled by hardware. Byte,
half-word and word access are supported. Data should be access in a big-endian way.
For instance, if the application wants to write into the Endpoint/Pipe3, it can access anywhere in
the USBFIFO3DATA HSB segment address. i.e : an access to the 0x30000 offset, is strictly
equivalent to an access to the 0x3FFFC offset.
Note that the virtual address space size (64KB) has nothing to do with the Endpoint/Pipe size.
Disabling the USBB (by writing a zero to the USBE bit) does not reset the DPRAM.
AT32UC3B
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