NEC PD75402A - Manual (Page 166)

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CHAPTER 9. INSTRUCTION SET
IN A, PORTn 2 2 A ← PORTn (n = 0 – 3, 5, 6)
OUT PORTn, A 2 2 PORTn ← A (n + 2, 3, 5, 6)
HALT 2 2 Set HALT Mode (PCC.2 ← 1)
STOP 2 2 Set STOP Mode (PCC.3 ← 1)
NOP 1 1 No Operation
Operation Bytes
Skip
Condition
Addressing
Area
Machine
Cycle
Note 1. Instruction Group
2. I/O instructions
Mnemonic Operand Note 1
Note 2
CPU control instructions