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CHAPTER 15 WATCH TIMER
15.3 Configuration of Watch Timer
This section explains the registers and interrupt factors of the watch timer.
■ List of Registers and Reset Values of Watch Timer
Figure 15.3-1 List of Registers and Reset Values of Watch Timer
■ Generation of Interrupt Request from Watch Timer
• When the interval time set by the interval time select bits (WTC:WTC2 to WTC0) is reached, the
overflow flag bit (WTC:WTOF) is set to "1".
• When the overflow flag bit is set (WTC:WTOF = 1) with interrupt enabled when the watch timer
counter overflows (carries) (WTC:WTIE = 1), an interrupt request is generated.
10000
×
654321
01
70
bit
Address: 0000AA
H
✕: Undefined
Watch timer control register (WTC)