sae81c80a Infineon Technologies Corporation, sae81c80a Datasheet - Page 26

• Manufacturer Part Number: sae81c80a
• Description: Cmos Dual-port Ram
• Manufacturer: Infineon Technologies Corporation

Appendix
8051 Program for Timer Operation in Watchdog Mode
HBYTE
TMR
CR
REST1
REST2
WDOFF
; Load reload register
MOV
CLR
MOVX
DEC
MOV
MOVX
DEC
MOVX
; Set watchdog mode and start timer
MOV
DEC
MOVX
; Reset timer
MOV
MOV
MOVX
MOV
MOVX
; Switch off watchdog mode and halt timer
Semiconductor Group
EQU
EQU
EQU
EQU
EQU
EQU
DPTR, #HBYTE
A
@DPTR,A
DPL
A, #0FFH
@DPTR,A
DPL
@DPTR,A
A, #0AFH
DPL
@DPTR,A
DPTR, #KR
A, #REST1
@DPTR,A
A, #REST2
@DPTR,A
1E3
1E0
1EC
055
0AA
040
H
H
H
H
H
H
26
; Address high byte reload register
; Address timer-mode register
; Address control register
; 1st value to restart timer
; 2nd value to restart timer
; Value to switch off watchdog mode
SAE 81C80 A