Question

 

Explain the function of the following pin of 8085:

`"IO|" bar"M"`

 

Explain the function of following pin of 8085 Micro-processor:

`"IO|" bar"M"`

Explain the following pin of 808S Microprocessor:

`"IO|" bar"M"`

Answer 1

• It is a status signal that indicates whether the address bus is being used for an I/O device or for memory.
• When the signal is high, the address on the address bus refers to an I/O device, and when it is low, the address refers to memory.
• This signal is placed in a tri-state condition during HOLD and HALT states.