Knowledge Base

Display the DM/DN register on the LCD. The display produced consists of 7 characters, one for each day of the week. The day number corresponding to the number in DN is said to be the selected day. A day for which the corresponding bit in DM is set is said to be on, otherwise it is off. If a day is ON, it is represented by the first letter of its name. If it is OFF it is represented by a hyphen or an underscore. The selected day is represented by its upper case first letter if ON or by its lower case first letter if OFF. The following table shows all the possibilities:

 ONOFF
SelectedUpper case 1st letterUnderscore
Not selectedLower case first letterHyphen

Note: This instruction alters UV.

RTC documentation and tutorial

Dialect exclusions: Not available in dialects before 16.