Fujitsu MB90480 Series Hardware Manual page 211

❍ Interval timer selector
Selects one of the four types for timebase timer counter output. Overflow of the selected bit
causes an interrupt.
❍ Timebase timer control register (TBTC)
Selects the interval time, clears the counter, controls interrupt requests, and checks the current
state.
CHAPTER 9 TIMEBASE TIMER
189