NEC PD75P402 User Manual Page 186

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175
CHAPTER 9. INSTRUCTION SET
9.4.12 Input/Output Instructions
IN A, PORTn
Function: A PORTn; n = N3 to N0 : 0 to 3, 5, 6
Transfers the contents of the port specified by PORTn (n = 0 to 3, 5, 6) to the A register.
Note Only 0 to 3, 5 or 6 can be specified at n.
Output latch data (output mode) or pin data (input mode) is fetched according to input/output mode
specification.
OUT PORTn, A
Function: PORTn A; n = N3 to N0 : 2, 3, 5, 6
Transfers the contents of the A register to the output latch of the port specified by PORTn (n = 2, 3, 5, 6)
Note Only 2, 3, 5, or 6 can be specified at n.
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