Chapter 8 Clock Generation Function; Features; Configuration - NEC PD703114 User Manual

The clock generator (CG) generates and controls the internal system clock (f
unit, such as the CPU.

8.1 Features

• Multiplier function using a phase locked loop (PLL) synthesizer
• Clock sources
• Oscillation by connecting a resonator
• External clock
• Power-saving modes
• HALT mode
• IDLE mode
• Software STOP mode
• Internal system clock output function

8.2 Configuration

CKSEL
Remark f : External resonator or external clock frequency
X
f : Internal system clock
XX
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CHAPTER 8 CLOCK GENERATION FUNCTION

X1
(f )
Clock
X
generator
X2
(CG)
User's Manual U15195EJ5V0UD
) that is supplied to each internal
XX
f
XX
CPU, on-chip peripheral I/O
CLKOUT
Time base counter (TBC)