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Appendices
Appendix C.
Alphabet Input Procedure
To activated or deactivate the alphabet input func-
tion, issue
OUT statement in a user program.
As shown at right, each of 0-9 numerical keys and
period key is assigned three characters. For exam-
ple, the 7 key is assigned A, B, and C.
To designate one of three assigned characters,
use the M1 or M2 key. Note that the trigger
switch function (default) or no function should be
assigned to the M1 or M2 key to be used.
ABC DEF GHI
JKL MNO PQR
STU VWX YZsp
+-
*
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Alphabet input procedure
(1) Activating the alphabet input function with OUT statement
In a user program, issue the
OUT statement which sets 1 to bit 0 of port 5. (To
deactivate the function, issue the
OUT statement which sets 0 to bit 0 of port 5.)
To activate: OUT 5, &h1
To deactivate: OUT 5, &h0
The default setting of the alphabet input function is "deactivated."
(2) Entering alphabetic characters from the keypad
1) Find a target key which is assigned an alphabetic character to be inputted, and
then check the position of the character (Left, Center, or Right) relative to the
three characters assigned to the target key.
2) Designate the character position by using the M1 or M2 key and then press
the target key.
How to use the M1 or M2 key
Pressing the M1 or M2 key cycles through the shift guidance blocks Left ,
Center , and Right on the LCD as shown below.
Left
Center
Right
The shift guidance block will
appear on the top or bottom line,
depending upon the current
cursor position. That is, if the
cursor lies on any of the lower
lines, the shift guidance block will
appear on the top line; if it lies on
any of the upper lines, the block
will appear on the bottom line.