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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 word
E: End word
IORF(097)
St
E