Overview - Fujitsu MB96300 series Hardware Manual

CHAPTER 10 SOURCE CLOCK TIMERS
10.1

Overview

The MB96300 Super series offers 3 independent source clock timers (RC clock timer,
Main clock timer and Sub clock timer) which can issue interrupts at specified intervals
and which are used to measure the oscillation stabilization time.
■ RC clock timer
The RC clock timer is clocked by the output signal of the internal RC oscillator (CLKRC) and is always
running when the RC oscillator is enabled. It is also used to measure the RC clock stabilization wait time.
■ Main clock timer
The Main clock timer is clocked by the output signal of the Main oscillation circuit (CLKMC) and is always
running when the Main oscillator is enabled. It is also used to measure the Main clock stabilization wait time.
■ Sub clock timer
The Sub clock timer is clocked by the output signal of the Sub oscillation circuit (CLKSC) and is always
running when the Sub oscillator is enabled. It is also used to measure the Sub clock stabilization wait time.
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MB96300 Super Series Hardware Manual