Renesas RL78/G15 User Manual

RL78/G15 CHAPTER 5 CLOCK GENERATOR
R01UH0959EJ0110 Rev.1.10 Page 133 of 765
Mar 7, 2023
Remark f
X
: X1 clock oscillation frequency
f
lH
: High-speed on-chip oscillator clock frequency
f
EX
: External main system clock frequency
f
MX
: High-speed system clock frequency
f
MAIN
: 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) 8-pin and 10-pin products
●
Peripheral enable register 0 (PER0)
●
High-speed on-chip oscillator frequency select register (HOCODIV)
●
Operation speed mode control register (OSMC)
●
High-speed on-chip oscillator trimming register (HIOTRM)
2) 16-pin and 20-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 select register (HOCODIV)
●
High-speed on-chip oscillator trimming register (HIOTRM)
Caution Which registers and bits are included depends on the product. Be sure to set registers and bits that
are not mounted in a product to their initial values.

Renesas RL78/G15 Specifications

General

Brand	Renesas
Model	RL78/G15
Category	Microcontrollers
Language	English