Abov MC96F6332D - Interrupt Sequence Flow

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
IE.EA Flag  0
1
Program Counter low Byte
SP  SP + 1
M(SP)  (PCL)
2
Program Counter high Byte
SP  SP + 1
M(SP)  (PCH)
3
Interrupt Vector Address occurrence
(Interrupt Vector Address)
4
ISR(Interrupt Service Routine) move,
execute
5
Return from ISR
RETI
6
Program Counter high Byte recovery
(PCH)  M(SP), SP  SP-1
7
Main Program execution
10
Program Counter low Byte recovery
(PCL)  M(SP), SP  SP-1
8
IE.EA Flag  1
9