$NOMOD51                ;der Modus fuer 8051 wird abgeschaltet
$debug
$nolist                 ;es wird kein Listing fuer reg535 erstellt
$include(C8051F340.inc) ;die C8051F340-spezifischen Daten
$list                   ;es wird ein Listing erstellt
$title (VC_2_ACCU_REG.A51)
;------------------------------------------------------------------------
;Programmbeschreibung
;------------------------------------------------------------------------
;Programm:
;T1 --> A5h in Accu und 
;T2 --> Accu in R1 kopieren
;
;
;
;Erstellt am: Donnerstag, 8. Januar 2009 21:38:45 
;Programmiert: Juergen Walter  
;
;Verwendete Einspruenge: keine
;
;Verwendete Unterprogramme: keine
;
;
;Verwendete Register und Variable:
;Registerbank(0)
;R2
;
;Kommentar:
;
;Aenderungen:
;Geaendert am: Donnerstag, 8. Januar 2009 21:38:45
;
;
;------------------------------------------------------------------------
;Initialisierungsteil fuer allgemeine Konstanten
;------------------------------------------------------------------------


CSEG AT 0H              ;Legt absolute Codesegmentadresse auf 0h
jmp INIT
;
;------------------------------------------------------------------------
;Interrupt-Vektoren
;------------------------------------------------------------------------
;ORG 

;------------------------------------------------------------------------
;Initialisierungsteil fuer On-Chip Peripherie
;------------------------------------------------------------------------
ORG 100H                	;Programmstart bei 100H
INIT:
call Init_Device			;Aufruf zur Initialisierung der Controller Funktionen

;------------------------------------------------------------------------
;Programmschleife
;------------------------------------------------------------------------

ABFRAGE:
jnb P1.1,SCHREIBE_ACCU		;Abfrage Taster 1
jnb P1.2,KOPIERE_ACCU_REG0	;Abfrage Taster 2
jmp ABFRAGE

SCHREIBE_ACCU:
mov ACC,#0A5H				;Schreibe Zahl in Accu
jmp ABFRAGE

KOPIERE_ACCU_REG0:
mov R0,ACC					;Kopiere ACCU in Register 0 
jmp ABFRAGE




;------------------------------------------------------------------------
; Peripheral specific initialization functions,
; Called from the Init_Device label
;------------------------------------------------------------------------
Port_IO_Init:
    ; P0.0  -  Skipped,     Push-Pull,  Digital
    ; P0.1  -  Skipped,     Push-Pull,  Digital
    ; P0.2  -  Skipped,     Push-Pull,  Digital
    ; P0.3  -  Skipped,     Push-Pull,  Digital
    ; P0.4  -  Skipped,     Push-Pull,  Digital
    ; P0.5  -  Skipped,     Push-Pull,  Digital
    ; P0.6  -  Skipped,     Push-Pull,  Digital
    ; P0.7  -  Skipped,     Push-Pull,  Digital

    ; P1.0  -  T0  (Timr0), Push-Pull,  Digital
    ; P1.1  -  T1  (Timr1), Push-Pull,  Digital
    ; P1.2  -  Unassigned,  Push-Pull,  Digital
    ; P1.3  -  Unassigned,  Push-Pull,  Digital
    ; P1.4  -  Unassigned,  Push-Pull,  Digital
    ; P1.5  -  Unassigned,  Push-Pull,  Digital
    ; P1.6  -  Unassigned,  Push-Pull,  Digital
    ; P1.7  -  Unassigned,  Push-Pull,  Digital

    ; P2.0  -  Unassigned,  Push-Pull,  Digital
    ; P2.1  -  Unassigned,  Push-Pull,  Digital
    ; P2.2  -  Unassigned,  Push-Pull,  Digital
    ; P2.3  -  Unassigned,  Push-Pull,  Digital
    ; P2.4  -  Unassigned,  Push-Pull,  Digital
    ; P2.5  -  Unassigned,  Push-Pull,  Digital
    ; P2.6  -  Unassigned,  Push-Pull,  Digital
    ; P2.7  -  Unassigned,  Push-Pull,  Digital

    ; P3.0  -  Unassigned,  Push-Pull,  Digital
    ; P3.1  -  Unassigned,  Push-Pull,  Digital
    ; P3.2  -  Unassigned,  Push-Pull,  Digital
    ; P3.3  -  Unassigned,  Push-Pull,  Digital
    ; P3.4  -  Unassigned,  Push-Pull,  Digital
    ; P3.5  -  Unassigned,  Push-Pull,  Digital
    ; P3.6  -  Unassigned,  Push-Pull,  Digital
    ; P3.7  -  Unassigned,  Push-Pull,  Digital

    mov  P0MDOUT,   #0FFh
    mov  P1MDOUT,   #0FFh
    mov  P2MDOUT,   #0FFh
    mov  P3MDOUT,   #0FFh
    mov  P0SKIP,    #0FFh
    mov  XBR1,      #070h
    ret

Oscillator_Init:
    mov  OSCICN,    #083h
    ret

; Initialization function for device,
; Call Init_Device from your main program
Init_Device:
    lcall Port_IO_Init
    lcall Oscillator_Init
    ret

end