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User’s Manual U14359EJ4V0UM
CHAPTER 9 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.
9.1
Features
•
Multiplication function using phase locked loop (PLL) synthesizer
•
Clock sources
•
Oscillation by connecting a resonator
•
External clock
•
Power-save control
•
HALT mode
•
IDLE mode
•
Software STOP mode
•
Internal system clock output function
9.2
Configuration
X1
X2
Clock
generator
(CG)
CKSEL
(f
X
)
CPU, on-chip peripheral I/O
Time base counter (TBC)
CLKOUT
Remark
f
X
: External resonator or external clock frequency
