UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 273

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

CPU processing
WDTIF
Figure 14-8. Flowchart from Non-Maskable Interrupt Request Generation to Acknowledgement
WDTM: Watchdog timer mode register
WDT:
WDTIF: Watchdog timer interrupt request flag
Figure 14-9. Timing of Non-Maskable Interrupt Request Acknowledgement
Instruction
Watchdog timer
Interrupt request generated during this interval is acknowledged at
Interrupt request is generated
Interrupt servicing is started
(non-maskable interrupt
(watchdog timer mode
request is selected)
CHAPTER 14 INTERRUPT FUNCTIONS
is not processed
Interrupt control
WDT interrupt
register is not
WDTM4 = 1
is selected)
WDTM3 = 0
overflows
accessed
WDT
Start
User’s Manual U13029EJ7V1UD
Yes
Yes
Yes
Yes
Yes
Yes
Instruction
No
No
No
No
No
Interrupt request pending
Reset processing
Interval timer
jumping to interrupt servicing Interrupt servicing program
Saving PSW and PC, and
.
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