Renesas RL78/G15 User Manual

RL78/G15 CHAPTER 5 CLOCK GENERATOR
R01UH0959EJ0110 Rev.1.10 Page 139 of 765
Mar 7, 2023
Caution 2. The oscillation stabilization time counter counts up to the oscillation stabilization time set by the
oscillation stabilization time select register (OSTS).
In the following cases, set the oscillation stabilization time of the OSTS register to the value greater
than the count value which is to be checked by the OSTC register.
 If the X1 clock starts oscillation while the high-speed on-chip oscillator clock is being used as
the CPU clock.
 If the STOP mode is entered and then released while the high-speed on-chip oscillator clock is
being used as the CPU clock with the X1 clock oscillating.
Caution 3. The X1 clock oscillation stabilization time does not include the time until clock oscillation starts
(“a” below).
a
STOP mode release
X1 pin
voltage
waveform
Remark f
X
: X1 clock oscillation frequency

Renesas RL78/G15 Specifications

General

Brand	Renesas
Model	RL78/G15
Category	Microcontrollers
Language	English