Clocks - Fujitsu F2MC-8L MB89620 Series Hardware Manual

6
3.

Clocks

The clock generator is provided with an oscillator. By connecting with an external
resonator, the circuit generates clocks which serve as a source
oscillator. Alternatively, an externally generated clock input can be used.
Clock controller controls the oscillation and supply of the clock signals according to the
standby modes.
n Clock Supply Map
Oscillation of a clock and its supply to the CPU and peripheral circuit (peripheral functions) are
controlled by the clock controller according to the standby modes (sleep/stop).
Divide-by-n output derived from the free-run counter is supplied to the peripheral functions;
some of the peripherals are supplied with the divide-by-n output from the timebase timer.
58
CHAPTER 3 CPU MB89620 series