GMS84512 Datasheet, PDF (84/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

GMS 84512 / 84524
When multiple interrupt is accepted, it is possible to change Interrupt Accept Mode.
l Case of multiple interrupt at hardware priority accept mode(Mode0)
Main Program
( Mode 0 )
EI
1’st INT. Routine
( Mode 0 )
2’nd INT. Routine
( Mode 0 )
3’rd INT. Routine
EI
EI
Interrupt
Interrupt
Interrupt
l Case of multiple interrupt nest H/W priority accept mode (Mode0) and S/W selection accept
mode(Mode1)
Main Program
( Mode 0 )
EI
Interrupt
1’st INT. Routine
( Mode 0 )
2’nd INT. Routine
( Mode 1 )
3’rd INT. Routine
EI
Stacking IMOD
Change Mode
Interrupt
EI
Interrupt
Reload IMOD
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