AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 925

• Manufacturer Part Number: AT32UC3A4256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A4256

• Flash (kbytes): 256 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
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

34.3.6.1
32072G–11/2011
trace operation
Debug tools utilizing the AUX port should connect to the device through a Nexus-compliant Mic-
tor-38 connector, as described in the AVR32UC Technical Reference manual. This connector
includes the JTAG signals and the RESET_N pin, giving full access to the programming and
debug features in the device.
Table 34-5.
Figure 34-3. AUX+JTAG based Debugger
Trace features are enabled by writing OCD registers by JTAG. The OCD extracts the trace infor-
mation from the CPU, compresses this information and formats it into variable-length messages
according to the Nexus standard. The messages are buffered in a 16-frame transmit queue, and
are output on the AUX port one frame at a time.
Signal
MCKO
MDO[5:0]
MSEO[1:0]
EVTI_N
EVTO_N
Auxiliary Port Signals
Direction
Output
Output
Output
Output
Input
T r a c e b u f f e r
h i g h s p e e d
Description
Trace data output clock
Trace data output
Trace frame control
Event In
Event Out
A U X
M i c t o r 3 8
A V R 3 2
P C
A U X + J T A G
d e b u g t o o l
J T A G
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