Motorola MVME172 manual Tick Timer 2 Control Register

								LCSR Programming Model
		WDCS		When this bit is set high, the watchdog time-out status bit
				(WDTO bit in this register) is cleared.
		SRST		When this bit is set high, a SYSRESET signal is generated
				on the VMEbus. SYSRESET resets the VMEchip2 and
				clears this bit.
Tick Timer 2 Control Register
	ADR/SIZ				$FFF40060 (8 bits [7 used] of 32)
	BIT	15	14		13	12	11	10	9	8
	NAME			OVF				COVF	COC	EN
	OPER			R				C	R/W	R/W
	RESET			0 PS				0 PS	0 PS	0 PS
		EN		When this bit is high, the counter increments. When this
				bit is low, the counter does not increment.
		COC		When this bit is high, the counter is reset to zero when it
				compares with the compare register. When this bit is low,
				the counter is not reset.
		COVF		The overflow counter is cleared when a one is written to
				this bit.
		OVF		These bits are the output of the overflow counter. The
				overflow counter is incremented each time the tick timer
				sends an interrupt to the local bus interrupter. The

overflow counter can be cleared by writing a one to the COVF bit.

2

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