Renesas RL78/G10

RL78/G10 CHAPTER 5 CLOCK GENERATOR
R01UH0384EJ0311 Rev. 3.11 78
Dec 22, 2016
Remark fX: X1 clock oscillation frequency
f
IH: High-speed on-chip oscillator clock frequency
f
EX: External main system clock frequency
f
MX: High-speed system clock frequency
fMAIN: Main system clock frequency
f
CLK: CPU/peripheral hardware clock frequency
f
IL: Low-speed on-chip oscillator clock frequency
5.3 Registers Controlling Clock Generator
The clock generator is controlled by the following registers depending on the products.
(1) 10-pin products
● Peripheral enable register 0 (PER0)
● High-speed on-chip oscillator frequency selection register (HOCODIV)
(2) 16-pin products
● Clock operation mode control register (CMC)
● System clock control register (CKC)
● Clock operation status control register (CSC)
● Oscillation stabilization time counter status register (OSTC)
● Oscillation stabilization time select register (OSTS)
● Peripheral enable register 0 (PER0)
● Operation speed mode control register (OSMC)
● High-speed on-chip oscillator frequency selection register (HOCODIV)
Caution The registers and bits mounted depend on the products. Be sure to set the initial value in the
registers and bits not mounted.