ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 509

• Manufacturer Part Number: ATEVK1104
• Description: KIT DEV/EVAL FOR AVR32 AT32UC3A
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1104

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A3
• Data Bus Width: 32 bit
• Interface Type: USB, SPI, USART
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A3256
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30.7.1.8
Table 30-4.
30.7.1.9
Figure 30-11. Plug-In Detection Input Block Diagram
32058J–AVR32–04/11
00b
01b
10b
11b
Plug-In Detection
Customizing of OTG Timers
([OTG] Chapter 6.6.5.1)
Customizing of OTG Timers
AWaitVrise Time-Out
VBUS
100 ms
20 ms
50 ms
70 ms
00b:
It is possible to refine some OTG timers thanks to the TIMPAGE and TIMVALUE bit-fields, as
shown by
TIMPAGE is used to select the OTG timer to access while TIMVALUE indicates the time-out
value of the selected timer.
TIMPAGE and TIMVALUE can be read or written. Before writing them, the firmware should
unlock write accesses by setting the UNLOCK bit. This is not required for read accesses, except
before accessing TIMPAGE if it has to be written in order to read the TIMVALUE bit-field of
another OTG timer.
The USB connection is detected from the VBUS pad.
plug-in detector.
The control logic of the VBUS pad outputs two signals:
In device mode, the VBUS bit follows the Session_valid comparator output:
•the Session_valid signal is high when the voltage on the VBUS pad is higher than or equal to
•the Va_Vbus_valid signal is high when the voltage on the VBUS pad is higher than or equal to
•it is set when the voltage on the VBUS pad is higher than or equal to 1.4 V;
1.4 V;
4.4 V.
Pad Logic
Figure
VDD
GND
VbBusPulsing Time-Out
([OTG] Chapter 5.3.4)
30-4.
Session_valid
Va_Vbus_valid
VBus_pulsing
VBus_discharge
23 ms
31 ms
40 ms
15 ms
01b:
Logic
TIMPAGE
PdTmOutCnt Time-Out
([OTG] Chapter 5.3.2)
USBSTA
VBUS
105 ms
118 ms
131 ms
93 ms
10b:
Figure 30-11
VBUSTI
USBSTA
shows the architecture of the
SRPDetTmOut Time-Out
([OTG] Chapter 5.3.3)
AT32UC3A
100 µs
11 ms
10 µs
1 ms
11b:
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