4.5.1.4 AVR XMEGA OCD Features

The AVR XMEGA OCD is otherwise known as PDI (Program and Debug Interface). Two physical interfaces (JTAG and PDI physical) provide access to the same OCD implementation within the device. It supports the following features:

Complete program flow control
Full access to all registers and memory areas
One dedicated program address comparator or symbolic breakpoint (reserved)
Four hardware comparators
Unlimited number of user program breakpoints (using BREAK instruction)
No limitation on system clock frequency

Note: For the ATxmegaA1 family, only revision G or later is supported.

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