; TURNING ON RTC
MOV R0, #10 ; REGISTER A ADDRESS IN R0
MOV A, #20H ; 010 TO TURN ON RTC
MOVX @RO,A ; SEND IT TO REGISTER A OF RTC
; SETTING TIME MODE
; AS DECIDED WE SET BCD, 24 HRS, DAYLIGHT SAVING
; MEANING SENDING 83H TO REGISTER B OF RTC
MOV R0, #11 ; REGISTER B ADDRESS IN R0
MOV A, #83H ; FOR REASONS SITED ABOVE
MOVX @R0, A ; SEND IT TO REGISTER B OF RTC
; SETTING THE TIME
; LET GET ONE THING CLEAR
; 0 - SECONDS
; 2 - MINUTES
; 4 - HOURS
; FOR INFO RELATED ABOVE SEE THE POST...
; SETTING SECONDS
MOV R0, #0 ; POINT TO SECONDS ADDRESS
MOV A, #SSH ; SECONDS = SS MEANS PUT ANY VALUE
; CAREFULL SECONDS 0 - 60 AND IN BCD
; SO SS = 00H,02H......09H,10H,11H,.......29H,30H,...,59H
; H IS MUST FOR BCD
MOVX @R0, A ; SET SECONDS
; SETTING MINUTES
MOV R0, #02 ; POINT TO MINUTES ADDRESS
MOV A, #MM ; MINUTES = MM MEANS PUT ANY VALUE
; CAREFULL MINUTES 0 - 60 AND IN BCD
; SO MM = 00H,02H......09H,10H,11H,.......29H,30H,...,59H
; H IS MUST FOR BCD
MOVX @R0, A ; SET MINUTES
; SETTING HOURS
MOV R0, #04 ; POINT TO HOURS ADDRESS
MOV A, #HH ; HOURS = HH
; CAREFULL HOURS HERE IS IN 24 HOURS FORMAT
; SO HH CAN BE 1,2,...., 14,15......,23 NOT OUTSIDE THIS
; H IS MUST FOR BCD
MOVX @R0, A ; SET HOURS
; REGISTER B
MOV R0, #11 ; POINT TO REGISTER B ADDRESS
MOV A, #03 ; D7 = 0 TO ALLOW UPDATE
MOVX @R0, A ; SEND IT TO REGISTER B OF RTC
END
MOV R0, #10 ; REGISTER A ADDRESS IN R0
MOV A, #20H ; 010 TO TURN ON RTC
MOVX @RO,A ; SEND IT TO REGISTER A OF RTC
; SETTING TIME MODE
; AS DECIDED WE SET BCD, 24 HRS, DAYLIGHT SAVING
; MEANING SENDING 83H TO REGISTER B OF RTC
MOV R0, #11 ; REGISTER B ADDRESS IN R0
MOV A, #83H ; FOR REASONS SITED ABOVE
MOVX @R0, A ; SEND IT TO REGISTER B OF RTC
; SETTING THE TIME
; LET GET ONE THING CLEAR
; 0 - SECONDS
; 2 - MINUTES
; 4 - HOURS
; FOR INFO RELATED ABOVE SEE THE POST...
; SETTING SECONDS
MOV R0, #0 ; POINT TO SECONDS ADDRESS
MOV A, #SSH ; SECONDS = SS MEANS PUT ANY VALUE
; CAREFULL SECONDS 0 - 60 AND IN BCD
; SO SS = 00H,02H......09H,10H,11H,.......29H,30H,...,59H
; H IS MUST FOR BCD
MOVX @R0, A ; SET SECONDS
; SETTING MINUTES
MOV R0, #02 ; POINT TO MINUTES ADDRESS
MOV A, #MM ; MINUTES = MM MEANS PUT ANY VALUE
; CAREFULL MINUTES 0 - 60 AND IN BCD
; SO MM = 00H,02H......09H,10H,11H,.......29H,30H,...,59H
; H IS MUST FOR BCD
MOVX @R0, A ; SET MINUTES
; SETTING HOURS
MOV R0, #04 ; POINT TO HOURS ADDRESS
MOV A, #HH ; HOURS = HH
; CAREFULL HOURS HERE IS IN 24 HOURS FORMAT
; SO HH CAN BE 1,2,...., 14,15......,23 NOT OUTSIDE THIS
; H IS MUST FOR BCD
MOVX @R0, A ; SET HOURS
; REGISTER B
MOV R0, #11 ; POINT TO REGISTER B ADDRESS
MOV A, #03 ; D7 = 0 TO ALLOW UPDATE
MOVX @R0, A ; SEND IT TO REGISTER B OF RTC
END
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