Debug Operation

If the Debug Run bit (DBGRUN) in the Debug Control register (DBGCTRL) is ‘1’ the RTC will continue normal operation.

If DBGRUN in DBGCTRL is ‘0’ and the CPU is halted, the RTC will halt operation and ignore incoming events.

If the Debug Run bit (DBGRUN) in the PIT Debug Control register (PITDBGCTRL) is ‘1’ the PIT will continue normal operation.

If DBGRUN in PITDBGCTRL is ‘0’ in debug mode and the CPU is halted, the PIT output will be low.

If the PIT output was high at the time, a new positive edge occurs to set the interrupt flag when re-starting from a break. The result is an additional PIT interrupt that would not happen during normal operation.

If the PIT output was low at the break, the PIT will resume low without additional interrupt.