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User’s Manual U15195EJ5V0UD
CHAPTER 8 CLOCK GENERATION FUNCTION
The clock generator (CG) generates and controls the internal system clock (f
XX
) that is supplied to each internal
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
X1
X2
Clock
generator
(CG)
CKSEL
(f
X
)
CPU, on-chip peripheral I/O
Time base counter (TBC)
CLKOUT
f
XX
Remark
f
X
: External resonator or external clock frequency
f
XX
: Internal system clock