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Ina input direct from port address (byte) – Zilog Z80380 User Manual

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Z380

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SER

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ANUAL

DC-8297-03

Z

ILOG

INA
INPUT DIRECT FROM PORT ADDRESS (BYTE)

INA A,(nn)

Operation:

A

←

(nn)

The byte of data from the selected peripheral is loaded into the accumulator. During the
I/O transaction, the peripheral address from the instruction is placed on the address bus.
Any bytes of address not specified in the instruction are driven on the address lines as all
zeros.

Flags:

S:

Unaffected

Z:

Unaffected

H:

Unaffected

V:

Unaffected

N:

Unaffected

C:

Unaffected

Addressing

Execute

Mode

Syntax

Instruction Format

Time

Note

INA A,(nn)

11101101 11011011 -n(low)- -n(high)

3+i

I

See also other documents in the category Zilog Sensors: