at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 591

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

27.3.6.1
32059J–12/2010
trace operation
the debug session starts. The AUX port is mapped to two different locations, selectable by OCD
Registers, minimizing the chance that the AUX port will need to be shared with an application.
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 27-5.
Figure 27-3. 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
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
Trace data output clock
Trace data output
Trace frame control
Event In
Event Out
Description
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
AT32UC3B
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