Hardware manual

Microcomputer Technical Q&A

Q&A No.: QAH8S-027

Category: Interrupts

Subject: Interrupt Immediately after Reset

Question

Is an interrupt ever generated immediately after a reset?

Answer

No, never. Immediately after a reset, all interrupts, including NMI, are disabled. However, NMI is

accepted when the first instruction of the program is executed.

Applicable Products

Applicability Series Applicability Series Applicability Series

Yes Entire H8S Series H8S/2655 H8S/2350

H8S/2355 H8S/2357 H8S/2345

H8S/2245 H8S/2148 H8S/2144

H8S/2138 H8S/2134 H8S/2128

H8S/2124 — — — —