2 Instructions
2-352 CP1E CPU Unit Instructions Reference Manual(W483)
Basic I/O Unit Instructions

IORF

Applicable Program Areas
Operands

St: Starting Word

CIO 001 to CIO 099, CIO 101 to CIO 199 (CP1W Expansion I/O Unit’s I/O Area)

E: End Word

CIO 001 to CIO 099, CIO 101 to CIO 199 (CP1W Expansion I/O Unit’s I/O Area)
Operand Specifications
Flags
Instruction Mnemonic Variations Function
code Function
I/O REFRESH IORF @IORF 097 Refreshes the specified I/O words.
Symbol
IORF
Area Step program areas Subroutines Interrupt tasks
Usage OK OK OK
Operand Description Data type Size
St Starting word --- Variable
EEnd word --- Variable
Area Word addresses Indirect DM addresses Constants CF Pulse bits TR bits
CIO WR HR AR T C DM @DM *DM
St, E OK --- --- --- --- --- --- --- --- --- --- --- ---
Name Label Operation
Error Flag P_ER ON if St is greater than E.
ON if St and E are in different memory areas.
OFF in all other cases.
St: Starting wordE: End wordIORF(097)StE