AT90USB646-AUR Atmel, AT90USB646-AUR Datasheet - Page 255
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AT90USB646-AUR
Manufacturer Part Number
AT90USB646-AUR
Description
MCU AVR 64K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB646-MU.pdf
(461 pages)
Specifications of AT90USB646-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
48
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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21.5
21.5.1
21.5.2
7593K–AVR–11/09
Power modes
Idle mode
Power down
Figure 21-13. USB General and OTG Controller Interrupt System
There are 2 kind of interrupts: processing (i.e. their generation are part of the normal processing)
and exception (errors).
Processing interrupts are generated when such events occur :
Exception Interrupts are generated with the following events :
In this mode, the CPU core is halted (CPU clock stopped). The Idle mode is taken wether the
USB controller is running or not. The CPU “wakes up” on any USB interrupts.
In this mode, the oscillator is stopped and halts all the clocks (CPU and peripherals). The USB
controller “wakes up” when:
• USB ID Pad change detection (insert, remove)(IDTI)
• VBUS plug-in detection (insert, remove) (VBUSTI)
• SRP detected(SRPI)
• Role Exchanged(ROLEEXI)
• Drop on VBus Detected(VBERRI)
• Error during the B-Connection(BCERRI)
• HNP Error(HNPERRI)
• Time-out detected during Suspend mode(STOII)
• the WAKEUPI interrupt is triggered in the Peripheral mode (HOST cleared),
OTGINT.5
OTGINT.4
OTGINT.3
OTGINT.2
OTGINT.1
OTGINT.0
USBINT.1
USBINT.0
ROLEEXI
HNPERRI
BCERRI
VBUSTI
VBERRI
STOI
SRPI
IDTI
USBCON.1
USBCON.0
OTGIEN.5
OTGIEN.4
ROLEEXE
OTGIEN.3
OTGIEN.2
OTGIEN.1
OTGIEN.0
HNPERRE
BCERRE
VBERRE
VBUSTE
STOE
SRPE
IDTE
USB General & OTG
Asynchronous Interrupt source
(allows the CPU to wake up from power down mode)
Interrupt Vector
AT90USB64/128
255
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