
HYUNDAI MicroElectronics
46
When release the STOP Mode, to secure oscillation stabilization time, we use Basic Interval Timer.
So, before execution STOP instruction, we must select suitable B.I.T. clock for oscillation
stabilization time. Otherwise, It is possible to release by only RESET input.
Because STOP mode is released by interrupt, even if both of interrupt enable bit(IE) and interrupt
request flag is "1", STOP mode can not be executed.
STOP Mode Releasing Flow
0
1
NOP
NOP
Interrupt Service Routine
I-Flag ?
0
1
STOP Mode Release
Interrupt Request
IE ?
STOP Mode
STOP Command