M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 676

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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(b) If a new INTWDT request is generated twice while an INTWDT service program is being executed
INTWDT request
(a) If a new INTWDT request is generated while an INTWDT service program is being executed
INTWDT request
Main routine
Figure 17-2. Acknowledging Non-Maskable Interrupt Request
CHAPTER 17 INTERRUPT/EXCEPTION PROCESSING FUNCTION
Main routine
INTWDT
INTWDT
request
request
INTWDT request
User’s Manual U16543EJ4V0UD
Held pending because INTWDT service program is being serviced
Held pending because INTWDT service program is being serviced
Only one INTWDT request is acknowledged
even though two NMI requests are generated
(PSW.NP bit = 1)
INTWDT
regardless of the value of the PSW.NP bit.
Pending INTWDT request serviced
request is held pending