ATUC64L4U Atmel Corporation, ATUC64L4U Datasheet - Page 86

• Manufacturer Part Number: ATUC64L4U
• Manufacturer: Atmel Corporation

Specifications of ATUC64L4U

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8.6.1.5
8.6.1.6
32142A–12/2011
Data management
Pad Suspend
Figure 8-2.
Endpoints and pipe buffers can be allocated anywhere in the embedded memory (CPU RAM or
HSB RAM).
See
Figure 8-3
Figure 8-3.
Figure 8-4
• In Idle state, the pad is in low power consumption mode.
• In Active state, the pad is working.
”RAM management” on page
illustrates the behavior of the USB pad in device mode.
illustrates the pad events leading to a PAD state change.
Speed Selection in device mode
Pad Behavior
VBUS
DM
DP
Idle
90.
| DETACH = 1
| Suspend
USBE = 0
& DETACH = 0
& Suspend
USBE = 1
ATUC64/128/256L3/4U
UDCON.DETACH
UDCON.LS
Active
86