AT32UC3B0256-A2UR Atmel, AT32UC3B0256-A2UR Datasheet - Page 375
AT32UC3B0256-A2UR
Manufacturer Part Number
AT32UC3B0256-A2UR
Description
MCU AVR32 256K FLASH 64-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B1512-Z1UT.pdf
(692 pages)
Specifications of AT32UC3B0256-A2UR
Package / Case
64-TQFP, 64-VQFP
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
44
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
32K x 8
Program Memory Size
256KB (256K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Package
64TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
60 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
44
Interface Type
I2S/SPI/TWI/USART/USB
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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22.7.1.7
32059K–03/2011
Pad Suspend
Figure 22-9 on page 375
Figure 22-9. Pad Behavior
Figure 22-10 on page 376
• There is no way the data of the pipe/endpoint 0 can be lost (except if it is de-allocated) as
• Deactivating then reactivating a same pipe/endpoint with the same configuration only
• When the user write a one to the ALLOC bit, the Configuration OK Status bit in the Endpoint
• In the Idle state, the pad is put in low power consumption mode, i.e., the differential receiver
• In the Active state, the pad is working.
memory allocation and de-allocation may affect only higher pipes/endpoints.
modifies temporarily the controller DPRAM pointer and size for this pipe/endpoint, but
nothing changes in the DPRAM, so higher endpoints seem to not have been moved and their
data is preserved as far as nothing has been written or received into them while changing the
allocation state of the first pipe/endpoint.
n Status register (UESTAn.CFGOK) is set only if the configured size and number of banks
are correct compared to their maximal allowed values for the endpoint and to the maximal
FIFO size (i.e. the DPRAM size), so the value of CFGOK does not consider memory
allocation conflicts.
of the USB pad is off, and internal pull-down with strong value(15K) are set in both DP/DM to
avoid floating lines.
shows the pad behavior.
illustrates the pad events leading to a PAD state change.
Idle
| DETACH = 1
| Suspend
USBE = 0
& DETACH = 0
& Suspend
USBE = 1
Active
AT32UC3B
375
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