Instructions fun 235 i/o direct i/o – Toshiba 6F3B0253 User Manual
Page 241
6F3B0253
Basic Hardware and Function
239
7. Instructions
FUN 235
I/O
Direct I/O
Expression
Input
−
[ I/O (n) A ]
−
Output
Function
When the input is ON, this instruction immediately updates the external input (XW) and output
(YW) registers which are in the range of n registers starting with A.
•
For XW register ... reads the data from corresponding input circuit
•
For YW register ... writes the data into corresponding output circuit
Execution condition
Input
Operation
Output
OFF
No execution
OFF
ON
Execution
ON
Operand
Name
Device
Register
Constant Index
X
Y
R
S
T.
C. XW YW RW SW T
C
D
I
J
K
n Register size
1 - 32
A Start of
registers
√
√
Example
When R010 is ON, the 4 registers starting with XW00 (XW00 to YW03) are updated
immediately.
XW00
Input
XW01
circuit
YW02
Output
YW03
circuit