GMS84512 Datasheet, PDF (88/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

GMS 84512 / 84524
When release the STOP Mode, to secure oscillation stabilization time,we use a B.I.T.
So before execution STOP instruction, we must select suitable BIT clock for oscillation
stabillization time.
Otherwise, It is possible to release by only RESET input.
l 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 Command
Next Command Execution
STOP Mode
Interrupt Request
IE ?
0
1
STOP Mode Release
I-Flag ?
0
1
Interrupt Service Routine
FIG. 4.2.2 STOP Mode Releasing Flow
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