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Abbreviation, upper case and lower case commands
1. There are two command formats: complete
format and abbreviated format. In the following
command description, capital section of the
complete commands shows abbreviations
format. It has the same effect of sending
abbreviated and complete commands.
2. Abbreviation command is generally shown in
the form of 4-letter. Any abbreviation absent
from command table is taken as incorrect
command.
3. Either uppercase or lowercase letters, the
effects on the bus are the same.