Datasheet

V850ES/JG3 CHAPTER 21 STANDBY FUNCTION
R01UH0015EJ0300 Rev.3.00 Page 688 of 870
Sep 30, 2010
21.6.3 Securing oscillation stabilization time when releasing STOP mode
Secure the oscillation stabilization time for the main clock oscillator after releasing the STOP mode because the
operation of the main clock oscillator stops after STOP mode is set.
(1) Releasing STOP mode by non-maskable interrupt request signal or unmasked maskable interrupt request
signal
Secure the oscillation stabilization time by setting the OSTS register.
When the releasing source is generated, the dedicated internal timer starts counting according to the OSTS
register setting. When it overflows, the normal operation mode is restored.
Oscillated waveform
ROM circuit stopped Setup time count
Main clock
STOP status
Interrupt request
(2) Release by reset
This operation is the same as that of a normal reset.
The oscillation stabilization time is the initial value of the OSTS register, 2
16
/fX.