Resetting 8-Bit Osc1 Timer - Epson S1C17001 Technical Manual

14 8-BIT OSC1 TIMER (T8OSC1)

14.4 Resetting 8-bit OSC1 Timer

The 8-bit OSC1 Timer can be reset to 0 by writing 1 to the T8ORS bit (D4/T8OSC1_CTL register).
∗ T8ORST: Timer Reset Bit in the 8-bit OSC1 Timer Control (T8OSC1_CTL) Register (D4/0x50c0)
Normally, the counter should be reset by writing 1 to this bit before starting the count.
The counter is reset by hardware if the counter matches compare data after the count starts.
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164 S1C17001 TECHNICAL MANUAL