Motorola MC68HC05T16 Technical Data Manual page 42

TOFIE - Timer Overflow Interrupt Enable
1 (set)
0 (clear) –
RTIE - Real Time Interrupt Enable
1 (set)
0 (clear) –
4
Refer to section 5.2 for detailed description of Multi-Function Timer.
MOTOROLA
4-12
– TOF interrupt is enabled.
TOF interrupt is disabled.
– Real time interrupt circuit is active.
Real time interrupt circuit is inactive.
RESETS AND INTERRUPTS
TPG
MC68HC05T16