AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 629

• Manufacturer Part Number: AT32UC3A464
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

26.7.1.7
32072G–11/2011
Pad Suspend
Figure 26-8 on page 629
Figure 26-8. Pad Behavior
Figure 26-9 on page 629
Figure 26-9. Pad Events
The SUSP bit is set and the Wake-Up Interrupt (WAKEUP) bit in UDINT is cleared when a USB
“Suspend” state has been detected on the USB bus. This event automatically puts the USB pad
in the Idle state. The detection of a non-idle event sets WAKEUP, clears SUSP and wakes up
the USB pad.
• In the Idle state, the pad is put in low power consumption mode, i.e., the differential receiver
• In the Active state, the pad is working.
FIFO size (i.e. the DPRAM size), so the value of CFGOK does not consider memory
allocation conflicts.
of the USB pad is off, and internal pull-down with strong value(15K) are set in both DP/DM to
avoid floating lines.
SUSP
WAKEUP
PAD State
shows the pad behavior.
illustrates the pad events leading to a PAD state change.
Suspend detected
Active
Idle
| DETACH = 1
| Suspend
USBE = 0
Wake-up detected
Idle
& DETACH = 0
& Suspend
USBE = 1
Cleared on wake-up
Active
Cleared by software to acknowledge the interrupt
Active
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