Industrial Electronic Engineers, Inc.
SIZE
A
CODE IDENT NO.
05464
S036X2–XXX–XXXXX
Van Nuys, California
SCALE N/A
REV
N
SHEET 33 of 49
04/10/02
4.6
Miscellaneous Codes
[A
0
(RS) = Low for the following Control Codes]
00h
Null
No operation. Sending a 00h to the display is viewed by software as activity, and will reset a
Screen Saver code (3Ch).
07h
Bell/Alarm Output
Activates 160 msec drive signal for alarm tone.
10h
Scroll Line Lock
Sets 1 or more lines to be locked out from the Vertical Scroll function using a 2 byte command
consisting of the control code 10h and a line ID.
Line ID
Function
00h
Locks line 0
01h
Locks lines 0 and 1
02h
Locks lines 0, 1 and 2
FFh
Cancel Line Lock
14h
Software Reset
Clears the display screen, homes the cursor and resets modes and attributes to their default
settings.
Note
If Hardware Self–test is programmed, sending control
code 14h restarts self–test.
If Self–test was called by sending control code 3Eh,
sending control code 14h has no effect.
17h
Set Data Bit 7 High
Sets data bit 7 high for the following data byte.
19h
Set Address Bit 0 High
Sets address bit 0 (A
0
) high for the following byte only. The following byte must be a control code.
(In Motorola Mode, replace A
0
with RS).