108
ABOV Semiconductor Co., Ltd.
WTCR (Watch Timer Control Register): 96H
Initial value: 00H
When WT Interrupt occurs, this bit becomes ‘1’. For clearing bit, write ‘0’ to this bit or
automatically clear by INT_ACK signal. Writing “1” has no effect.
WT Interrupt no generation
Determine interrupt interval
f
WCK
/(2^14 x (7bit WTDR Value+1))
NOTE)
1. f
X
– System clock frequency (Where fx= 4.19MHz)
2. f
SUB
– Sub clock oscillator frequency (32.768kHz)
3. f
WCK
– Selected Watch timer clock
4. f
LCD
– LCD frequency (Where f
X
= 4.19MHz, WTCK[1:0]=’10’; f
LCD
= 1024Hz)