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CHAPTER 18 INTERRUPT FUNCTIONS AND TEST FUNCTION
460
Figure 18-9. Flowchart from Non-Maskable Interrupt Request Generation to Acknowledge
WDTM
: Watchdog timer mode register
WDT
: Watchdog timer
Figure 18-10. Non-Maskable Interrupt Request Acknowledge Timing
TMIF4
: Watchdog timer interrupt request flag
Start
WDTM4 = 1
(with watchdog timer
mode selected)?
Overflow in
WDT?
WDTM3 = 0
(with non-maskable
interrupt request
selected)?
Interrupt request generation
WDT interrupt
servicing?
Interrupt
control register
unaccessed?
Interrupt service
start
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Interval timer
Reset processing
Interrupt request
reserve
CPU Processing
Instruction
Instruction
PSW, PC save, jump
to interrupt servicing
The interrupt request generated in this period is acknowledged at timing.
Interrupt servicing
program
TMIF4
Summary of Contents for 78014Y Series
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Page 94: ...www DataSheet4U com CHAPTER 4 PIN FUNCTION PD78014Y Subseries 94 MEMO...
Page 170: ...www DataSheet4U com CHAPTER 7 CLOCK GENERATOR 170 MEMO...
Page 222: ...www DataSheet4U com CHAPTER 9 8 BIT TIMER EVENT COUNTER 222 MEMO...
Page 230: ...www DataSheet4U com CHAPTER 10 WATCH TIMER 230 MEMO...
Page 262: ...www DataSheet4U com CHAPTER 14 A D CONVERTER 262 MEMO...
Page 318: ...www DataSheet4U com CHAPTER 15 SERIAL INTERFACE CHANNEL 0 PD78014 Subseries 318 MEMO...
Page 408: ...www DataSheet4U com CHAPTER 16 SERIAL INTERFACE CHANNEL 0 PD78014Y Subseries 408 MEMO...
Page 446: ...www DataSheet4U com CHAPTER 17 SERIAL INTERFACE CHANNEL 1 446 MEMO...
Page 472: ...www DataSheet4U com CHAPTER 18 INTERRUPT FUNCTIONS AND TEST FUNCTION 472 MEMO...
Page 502: ...www DataSheet4U com CHAPTER 22 PD78P014 78P014Y 502 MEMO...
Page 520: ...www DataSheet4U com CHAPTER 23 INSTRUCTION SET 520 MEMO...