Type of instruction
ECALL
OT
Holds the state
KP
SET
RST
TM
Clocking is not performed.
Note that the time cannot be guaranteed if clocking is not performed once during a
scan.
CT
Holds the current progress.
SR
Differential instruction
Operates in the same way as differential instructions used between MC and MCE.
Refer to "Operation of differential instructions between MC and MCE".
Other instructions
Not executed.
(Note 1)
The following items are included in differential instructions.
1) DF (leading edge differential) instruction
2) Count input for CT (counter) instruction
3) Count input for UDC (up-down counter) instruction
4) Shift input for SR (shift register) instruction
5) Shift input for LRSR (left and right shift register) instruction
6) Differential execution type high-level instruction (instruction specified by p and instruction name)
■
Precautions for programming
● The "ECALL" instruction can be written in another subroutine program or step ladder, in
addition to the main program. The "ECALL" instruction with the same number can be written
repeatedly.
● Note that if a subroutine is executed repeatedly, it will take more time for operations to be
processed.
■
Flag operations
Name
Description
SR7
SR8
(ER)
Turns ON when the 16th subroutine executes the "ECALL" instruction while subroutines are
nested in 16 levels.
3.37 ECALL (Subroutine Call (with PB No. Specification))
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WUME-FP7CPUPGR-12
Summary of Contents for FP7 Series
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