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QWhat does the m1 signal in Z80 describe?

ID: #10472 Embedded System 105 views
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#10472Q ID
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Embedded SystemTopic
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  • A Input/output (I/O) operation status ✔ ✖
  • B Dynamic random-access memory (DRAM) refresh output ✔ ✖
  • C Output pulse on the instruction fetch cycle ✔ ✖
  • D Interrupt request input ✔ ✖
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Explanation

The m1 signal in Z80 describes an output pulse on the instruction fetch cycle. Other signals in Z80 include the interrupt request input, I/O operation status, and DRAM refresh output.

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