MC96F6432
June 22, 2018 Ver. 2.9 97
Figure 10.3 Interrupt Sequence Flow
Saves PC value in order to continue
process again after executing ISR
Program Counter low Byte
SP  SP + 1
M(SP)  (PCL)
Program Counter high Byte
SP  SP + 1
M(SP)  (PCH)
Interrupt Vector Address occurrence
(Interrupt Vector Address)
ISR(Interrupt Service Routine) move,
execute
Program Counter high Byte recovery
(PCH)  M(SP), SP  SP-1
Program Counter low Byte recovery
(PCL)  M(SP), SP  SP-1