ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 522

• 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

30.7.3
30.7.3.1
Figure 30-22. USB Communication Flow
30.7.3.2
Figure 30-23. Host Mode States
32058J–AVR32–04/11
USB Host Operation
Description of Pipes
Power-On and Reset
For the USB controller in host mode, the term “pipe” is used instead of “endpoint” (used in
device mode). A host pipe corresponds to a device endpoint, as described by the
from the USB specification.
In host mode, the USB controller associates a pipe to a device endpoint, considering the device
configuration descriptors.
Figure 30-23
After a hardware reset, the USB controller host mode is in the Reset state.
When the USB macro is enabled (USBE = 1) in host mode (ID = 0), its host mode state goes to
the Idle state. In this state, the controller waits for device connection with minimal power con-
sumption. The USB pad should be in the Idle state. Once a device is connected, the macro
enters the Ready state, what does not require the USB clock to be activated.
describes the USB controller host mode main states.
Clock stopped
Ready
Device
Connection
Macro off
SOFE = 1
Device
Disconnection
SOFE = 0
Idle
Suspend
Device
Disconnection
state>
<any
other
AT32UC3A
Figure 30-22
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