eZ80 CPU - writeframeofmind.biz

eZ80 CPU
User Manual
46
IN A (n)
Input I/O Port to Accumulator
Operation
Description
A ← (n)
The n operand is placed on address bus (7:0), the contents of the Accumulator
on address bus (15:8), and zero on address bus (23:16). The byte at this I/O
address is loaded into the Accumulator.
Condition Bits Affected
None
Mnemonic Operands ADL Mode Cycles Op Codes
IN (n) X 3 DB, nn
UM007701-1100