CHAPTER 10 INTERRUPT FUNCTIONS
User's Manual U11919EJ3V0UM00
159
Figure 10-8. Flowchart from Non-Maskable Interrupt Request Generation to Acceptance
Start
WDTM4 = 1
(watchdog timer mode
is selected)
Interval Timer
No
WDT
overflows
No
Yes
Reset Processing
No
Yes
Yes
Interrupt request is generated
Interrupt processing is started
WDTM3 = 0
(non-maskable interrupt
is selected)
WDTM : Watchdog timer mode register
WDT
: Watchdog timer
Figure 10-9. Non-Maskable Interrupt Request Acceptance Timing
Instruction
Instruction
Saving PSW and PC, and
jump to interrupt processing
Interrupt Processing Program
CPU Processing
TMIF4
Содержание mPD789026 Subseries
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