IBM uPD78082 - Manual (Page 215)

192
CHAPTER 12 INTERRUPT FUNCTION
The interrupt request reserve timing is shown in Figure 12-15.
Figure 12-15. Interrupt Request Hold
Remarks 1. Instruction N: Instruction that holds interrupts requests
2. Instruction M: Instructions other than instruction N
3. The operation of
××
IF (interrupt request) is not affected by
××
PR (priority level) values.
CPU processing
Ч Ч
IF
Instruction N Instruction M
Save PSW and PC,
Jump to interrupt service Interrupt service
program