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Out0 output (to page 0) – Zilog Z80380 User Manual

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Z380

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SER

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M

ANUAL

DC-8297-03

Z

ILOG

OUT0
OUTPUT (TO PAGE 0)

OUT0 (n),src

src = R

Operation:

(n)

src

The byte of data from the source register is loaded into the selected on-chip peripheral. No
external I/O transaction will be generated as a result of this instruction, although the I/O
address will appear on the address bus and the write data will appear on the data bus while
this internal write is occurring. The peripheral address is placed on the low byte of the
address bus and zeros are placed on all other address lines.

Flags:

S:

Unaffected

Z:

Unaffected

H:

Unaffected

V:

Unaffected

N:

Unaffected

C:

Unaffected

Addressing

Execute

Mode

Syntax

Instruction Format

Time

Note

R:

OUT0 (n),R

11101101 00-r-001 ——n—

3+o

Field Encodings:

r: per convention