Systemstart; Prozessablauf Beim Einschalten - Sharp Pc-1600 Systemhandbuch

10CS
3.5 Sytemstart
3.5.1 Prozessablauf
Das folgende Diagramm zeigt den Ablauf des Einschaltprozesses beim pe-1600.
When the power is
turned
power-oft function
BASIC ~
Interrupt
request
15
Interrupt
request
IS
beim Einschalten
Z80 RESET (Stan from OOOOHI
.------~~-------,
IOCS
Reset he ndlmq
on by the auto
L..--r----_.J
IOCS
KEYGET
IOCSt
ON frorn
ON key
the exterr-a'
i
maskeo
~
enabied
Do not sale !
Are the conou.ons
by the auto power-off
rounne
C, 0:
Allowed
=
No. auowec
t
A reqister holds
the power ON condu.ons
Hout.ne to check wnemer
I
t~e l~e power is auowec to be
turned on by (hp. auto power-off
· · A " reqister
'unCI'on
Power ON cor-du.ons
The rruerrupt
equest is masked.
r
I Wakeup
CI,s I ALL RESEl
event
turned on event
62
tor :~p.
tllrnr:~ pnWl:' 0'~
fllnct1ü ' l Stit,s(,er'()
I
I
I
I
I
I
11
U
or not
IRESET
event