Appendix A Programming the Watchdog Timer 105
W977Write PROC
push
dx
call
EnterConfig
;; Enter Config Mode
call
SelectDevice
;; Select logical device
mov
dx,cs:CONFIG_PORT
out
dx,al
;; Select register number
mov
al,ah
mov
dx,cs:DATA_PORT
out
dx,al
call
ExitConfig
;; Exit Config Mode
pop
dx
ret
W977Write ENDP
end
Содержание SBC-558
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