Matrix Orbital DD-DB1 LCD/VFD Dev Board - Manual (Page 34)

8. Data Security
8.1.Set
Remember
Dec
Hex
254 147
FE 93
Switch
Switch
Allows changes to specific settings to be saved to the display memory. Writing to memory can be slow and each change
consumes 1 write of approximately 100,000 available. Set and save functions are always remembered. Off is default.
Switch 1 byte, 1 for on or 0 for off
8.2.Data Lock Dec
Hex
254 202 245 160
FE CA F5 A0
Level
Level
Temporarily locks certain aspects of the display to ensure no inadvertent changes are made. A new level overrides the
old, and levels can be combined. Default is 0.
Level 1 byte, each bit representing a level, see table below
Unlock Reserved Reserved Reserved Setting Reserved Command Display
0 1 2 3 4 5 6 7
Unlock Unlocks all setting locks
Reserved Place holders only, should be 0
Setting Locks settings such as backlight and contrast
Command Locks all commands
Display Locks entire display, no new information can be displayed
8.3.Set and Save
Data Lock
Dec
Hex
254 203 245 160
FE CB F5 A0
Level
Level
Permanently locks certain aspects of the display to ensure no inadvertent changes are made. A new level overrides the
old, and levels can be combined. Default is 0.
Level 1 byte, see data lock table
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