Zilog Z80195 Manual do Utilizador descarregar pdf (Página 35)

Z80185/195 DEVELOPMENT KIT

USER'S MANUAL

3-15

UM951800100

ZILOG

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 >

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