at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 65

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

12. AT91SAM9263 Debug and Test
12.1
6249D–ATARM–20-Dec-07
Description
The AT91SAM9263 features a number of complementary debug and test capabilities. A com-
mon JTAG/ICE (In-Circuit Emulator) port is used for standard debugging functions, such as
downloading code and single-stepping through programs. An ETM (Embedded Trace Macrocell)
provides more sophisticated debug features such as address and data comparators, half-rate
clock mode, counters, sequencer and FIFO. The Debug Unit provides a two-pin UART that can
be used to upload an application into internal SRAM. It manages the interrupt handling of the
internal COMMTX and COMMRX signals that trace the activity of the Debug Communication
Channel.
A set of dedicated debug and test input/output pins gives direct access to these capabilities from
a PC-based test environment.
AT91SAM9263 Preliminary
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