Zilog Z80195 - Manual (Page 35)

Z80185/195 D EVELOPMENT K IT
U SER ' S M ANUAL
3-15 UM951800100
Z ILOG
Other Features
NMI
If you press the NMI button, you will see the following message:
Non-Maskable Interrupt!
A F B C D E H L A’ F’ B’ C’ D’ E’ H’ L’ I IX IY SP EI
FC 7C 00 00 81 53 00 BF 62 04 01 0E 90 00 80 89 00 904A 800F 827A 0
0F77 CB7F
BIT 7,A
Z80185 >>
Trap
The Z80185/195 family of products has a feature to cause a “Trap” when an undefined instruction is
executed. If this occurs, you will see the following message:
Undefined instruction Trap!
A F B C D E H L A’ F’ B’ C’ D’ E’ H’ L’ I IX IY SP PC
XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXX XX
Z80185 >