AT32UC3B0128-A2UR Atmel, AT32UC3B0128-A2UR Datasheet - Page 382
AT32UC3B0128-A2UR
Manufacturer Part Number
AT32UC3B0128-A2UR
Description
MCU AVR32 128K FLASH 64-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B164-AUR.pdf
(680 pages)
Specifications of AT32UC3B0128-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
128KB (128K 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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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22.7.2.4
22.7.2.5
32059J–12/2010
Endpoint reset
Endpoint activation
• All the endpoints are disabled, except the default control endpoint.
• The default control endpoint is reset (see
• The data toggle sequence of the default control endpoint is cleared.
• At the end of the reset process, the End of Reset (EORST) bit in UDINT interrupt is set.
An endpoint can be reset at any time by writing a one to the Endpoint n Reset (EPRSTn) bit in
the UERST register. This is recommended before using an endpoint upon hardware reset or
when a USB bus reset has been received. This resets:
• The internal state machine of this endpoint.
• The receive and transmit bank FIFO counters.
• All the registers of this endpoint (UECFGn, UESTAn, the Endpoint n Control (UECONn)
Note that the interrupt sources located in the UESTAn register are not cleared when a USB bus
reset has been received.
The endpoint configuration remains active and the endpoint is still enabled.
The endpoint reset may be associated with a clear of the data toggle sequence as an answer to
the CLEAR_FEATURE USB request. This can be achieved by writing a one to the Reset Data
Toggle Set bit in the Endpoint n Control Set register (UECONnSET.RSTDTS).(This will set the
Reset Data Toggle (RSTD) bit in UECONn).
In the end, the user has to write a zero to the EPRSTn bit to complete the reset operation and to
start using the FIFO.
The endpoint is maintained inactive and reset (see
it is disabled (EPENn is written to zero). DTSEQ is also reset.
The algorithm represented on
endpoint.
register), except its configuration (ALLOC, EPBK, EPSIZE, EPDIR, EPTYPE) and the Data
Toggle Sequence (DTSEQ) field of the UESTAn register.
Figure 22-14 on page 383
Section 22.7.2.4
Section 22.7.2.4
must be followed in order to activate an
for more details).
for more details) as long as
AT32UC3B
382
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