AT32UC3B064 Atmel Corporation, AT32UC3B064 Datasheet - Page 326

• Manufacturer Part Number: AT32UC3B064
• Manufacturer: Atmel Corporation

Specifications of AT32UC3B064

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 60 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 44
• Ext Interrupts: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 4
• Twi (i2c): 1
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

21.6.11.3
21.6.11.4
32059L–AVR32–01/2012
Local Loopback Mode
Remote Loopback Mode
Figure 21-40. Automatic Echo Mode Configuration
Local loopback mode connects the output of the transmitter directly to the input of the receiver,
as shown in
the receiver and the TXD pin is continuously driven high, as in idle state.
Figure 21-41. Local Loopback Mode Configuration
Remote loopback mode connects the RXD pin to the TXD pin, as shown in
transmitter and the receiver are disabled and have no effect. This mode allows bit-by-bit
retransmission.
Figure 21-42. Remote Loopback Mode Configuration
Figure
21-41. The TXD and RXD pins are not used. The RXD pin has no effect on
Transmitter
Transmitter
Transmitter
Receiver
Receiver
Receiver
1
1
RXD
TXD
RXD
TXD
RXD
TXD
Figure
21-42. The
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