Matrix Orbital GLC24064 User Manual
Page 49
Description
Paranoia allows you to lock the module from displaying information, as
well as enables the protection of the filesystem and module settings.
Each bit corresponds corresponds to a different lock level, while
sending a zero will unlock your display as the following tables explains:
Bit
Data Lock Level
Description
0-2
Reserved
Should be left 0
3
Communication
Speed Lock
When this bit is set (1) the
Baud Rate and I
2
C Slave
address are locked
4
Setting Lock
When this bit is set (1)
the display settings such
as backlight, contrast and
GPO settings are locked.
(Internal EEPROM)
5
Filesystem Lock
When this bit is set (1)
the external EEPROM is
locked, this has the same
effect as the File System
Jumper
6
Command Lock
When this bit is set (1) all
commands but commands
202/203 are locked. (cmd
lock)
7
Display Lock
When this bit is set (1) the
module is locked from dis-
playing any new informa-
tion. (text lock)
NOTES
• Sending a new data lock level will override the previous data lock level.
• Data lock levels may be combined.
Remembered
Always
Default
0
Examples
Hex
Dec
Binary
Description
0x00
0
0
Unlock
0x50
80
01010000
Setting and Command Lock
Matrix Orbital
GLC24064
44