The NMI vector is at address 0066h, regardless of the I register, and of the IM interrupt mode. The CPCs BIOS does not contain a NMI handler at that address, so, on the CPC, NMIs can be used only when RAM is enabled (or when the internal BIOS ROM is replaced by external ROM via ROMDIS signal).
The built-in components in the CPC don't use NMIs. There are a few some hardware expansions that do generate NMIs:
* [[Magic Sound Board]] for [[Aleste 520EX]] (four channel DMA playback) (Patisonic)
* [[Multiface II]] ([[Romantic Robot]])
* [[Mirage Imager]] (Mirage Microcomputers)
* [[Disc Wizard]] ([[Evesham Micros]])
* [[Transtape]] (Hard Micro)
* [[VIDI digitizer]] (Rombo Productions)
* [[Music Machine]] ([[Ram Electronics]])
* [[M4 Board]] (Spinpoint)
* [[PlayCity]] (Arnold Computer Multi-Expansions)
* [[Play2CPC]] (Arnold Computer Multi-Expansions)
* [[Albireo]] (PulkoTronics)
== See Also ==
* Aside from NMI, peripherals could also use External [[External Interrupt|INTs]] (though this would require to recurse conflicts with the internal 300Hz INTerrupt).
[[Category:Hardware]]