ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 553

• 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

30.8.1.10
Offset:
Register Name:
Access Type:
Read Value:
• DRDSTATE
This field indicates the state of the USB controller.
Refer to the OTG specification for more details.
32058J–AVR32–04/11
USBFSM
10
0
1
2
3
4
5
6
7
8
9
31
23
15
0
0
0
7
0
-
-
-
-
USB Finite State Machine Status Register (USBFSM)
Description
a_idle state : this is the start state for A-devices (when the ID pin is 0)
a_wait_vrise : In this state, the A-device waits for the voltage on VBus to rise above the A-
device VBus Valid threshold (4.4 V).
a_wait_bcon : In this state, the A-device waits for the B-device to signal a connection.
a_host : In this state, the A-device that operates in Host mode is operational.
a_suspend : The A-device operating as a host is in the suspend mode.
a_peripheral : The A-device operates as a peripheral.
a_wait_vfall : In this state, the A-device waits for the voltage on VBus to drop below the A-
device Session Valid threshold (1.4 V).
a_vbus_err : In this state, the A-device waits for recovery of the overcurrent condition that
caused it to enter this state.
a_wait_discharge : In this state, the A-device waits for the data usb line to discharge (100
us).
b_idle : this is the start state for B-device (when the ID pin is 1).
b_peripheral : In this state, the B-device acts as the peripheral.
30
22
14
0
0
0
6
0
-
-
-
-
29
21
13
0
0
0
5
0
-
-
-
-
0x082C
USBFSM
Read-Only
0x00000009
28
20
12
0
0
0
4
0
-
-
-
-
27
19
11
0
0
0
3
1
-
-
-
26
18
10
0
0
0
2
0
-
-
-
DRDSTATE
r
25
17
0
0
9
0
1
0
-
-
-
AT32UC3A
24
16
0
0
8
0
0
1
-
-
-
553