AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 873
AT32UC3C1512C Automotive
Manufacturer Part Number
AT32UC3C1512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
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32.6.1.2
32.6.1.3
32.6.1.4
9166C–AVR-08/11
Interrupts
Frozen clock
Speed control
• Device mode
The USBC can be disabled at any time by writing a zero to USBCON.USBE, this acts as a hard-
ware reset, except that the OTGPADE, VBUSPO, FRZCLK, UIDE, and UIMOD bits in USBCON,
and the LS bits in UDCON are not reset.
One interrupt vector is assigned to the USBC.
See
There are two kinds of general interrupts: processing, i.e. their generation is part of the normal
processing, and exception, i.e. errors (not related to CPU exceptions).
The processing general interrupts are:
The exception general interrupts are:
See
When the USB clock is frozen, it is still possible to access the following bits: OTGPADE,
VBUSPO, UIDE, UIMOD, FRZCLK, and USBE in the USBCON register, and LS in the UDCON
register.
When FRZCLK is set, only the asynchronous interrupts can trigger a USB interrupt (see
32.5.4).
When the USBC interface is in device mode, the speed selection is done by the UDCON.LS bit,
connecting an internal pull-up resistor to either DP (full-speed mode) or DM (low-speed mode).
The LS bit shall be written before attaching the device, which can be simulated by clearing the
UDCON.DETACH bit.
• The ID Transition Interrupt (IDTI)
• The VBUS Transition Interrupt (VBUSTI)
• The SRP Interrupt (SRPI)
• The Role Exchange Interrupt (ROLEEXI)
• The VBUS Error Interrupt (VBERRI)
• The B-Connection Error Interrupt (BCERRI)
• The HNP Error Interrupt (HNPERRI)
• The Suspend Time-Out Interrupt (STOI)
Section 32.6.2.18
Section 32.5.4
for asynchronous interrupts.
and
Section 32.6.3.16
for further details about device and host interrupts.
AT32UC3C
Section
873
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