ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 503
![KIT EVAL FOR AT32UC3A0](/photos/9/20/92036/atevk1105_sml.jpg)
ATEVK1105
Manufacturer Part Number
ATEVK1105
Description
KIT EVAL FOR AT32UC3A0
Manufacturer
Atmel
Series
AVR®32r
Type
MCUr
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.ATEVK1104.pdf
(826 pages)
3.ATEVK1105.pdf
(28 pages)
Specifications of ATEVK1105
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT32UC3A0512
Processor Series
AVR
Data Bus Width
32 bit
Interface Type
USART, TWI, USB, SPI, Ethernet
Operating Supply Voltage
3.3 V
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
AVR UC3
Silicon Core Number
AT32UC3A0512
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT32UC3A0
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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- Download datasheet (20Mb)
30.7
30.7.1
30.7.1.1
30.7.1.2
Figure 30-5. General States
32058J–AVR32–04/11
Functional Description
USB General Operation
Introduction
Power-On and Reset
After a hardware reset, the USB controller is disabled. When enabled, the USB controller runs
either in device mode or in host mode according to the ID detection.
If the USB_ID pin is not connected to ground, the ID bit is set by hardware (the internal pull-up
resistor of the USB_ID pin must be enabled by the GPIO controller) and device mode is
engaged.
The ID bit is cleared by hardware when a low level has been detected on the USB_ID pin. Host
mode is then engaged.
Figure 30-5
After a hardware reset, the USB controller is in the Reset state. In this state:
After setting USBE, the USB controller enters the Device or the Host mode (according to the ID
detection) in idle state.
The USB controller can be disabled at any time by clearing USBE. In fact, clearing USBE acts
as a hardware reset, except that the OTGPADE, VBUSPO, FRZCLK, UIDE, UIMOD and LS bits
are not reset.
•the macro is disabled (USBE = 0);
•the macro clock is stopped in order to minimize power consumption (FRZCLK = 1);
•the pad is in suspend mode;
•the internal states and registers of the device and host modes are reset;
•the DPRAM is not cleared and is accessible;
•the ID and VBUS read-only bits reflect the states of the USB_ID and VBUS input pins;
•the OTGPADE, VBUSPO, FRZCLK, USBE, UIDE, UIMOD and LS bits can be written by
software, so that the user can program pads and speed before enabling the macro, but their
value is only taken into account once the macro is enabled and unfrozen.
describes the USB controller main states.
Clock stopped:
FRZCLK = 1
Device
Macro off:
USBE = 0
USBE = 1
ID = 1
USBE = 0
Reset
USBE = 1
ID = 0
USBE = 0
USBE = 0
Host
RESET
HW
state>
<any
other
AT32UC3A
503
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