16.1.1 Block Diagram
Figure 16-1 shows a block diagram of the clock pulse generator.
XTAL
Oscillator
EXTAL
486
Duty
adjustment
circuit
Figure 16-1 Block Diagram of Clock Pulse Generator
Frequency
divider
Division
control
register
ø
Data bus
CPG
Prescalers
ø/2 to ø/4096