27.2.3.5 Debug Operation

When run-time debugging, this peripheral will continue normal operation. Halting the CPU in Debugging mode will halt normal operation of the peripheral.

This peripheral can be forced to operate with halted CPU by writing a '1' to the Debug Run bit (DBGRUN) in the Debug Control register of the peripheral (peripheral.DBGCTRL).

When the CPU is halted in Debug mode and DBGRUN=1, reading/writing the DATA register will neither trigger a bus operation nor cause transmit and clear flags.

If the peripheral is configured to require periodical service by the CPU through interrupts or similar, improper operation or data loss may result during halted debugging.