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and more about Sharp
PC-1500 at
http://www.PC-1500.info
@
Ml
Maska
bh! intcnupt
input.
When the
interrupt enable
nag IE
is
active.a high on
the
pin
Ml
requests interrupt.
to
which
the
CP
U
starts
10
execute
the
interrupt
processing
routine whos.:
high order
byte address is
represented
by the address FFF8
H
and
low
order
byte addrcs'
by FFF9
H.
How instruction execution
address is
determined against
the
reset
and
interrupt
input
EJttCfn.itl memory
Addiess
EOOOH
E171H
E22BH
C22Cll
fff8H
9
A
8
c
D
E
FFFFH
~
~
i...-:--..
ElH
71H
(2H
2CH
E2H
20!1
lOH
OOH
v--·
1--
l
r
I
r
I
I
Do not
sale
this
PDF
!!!
-
-
-..
Start
address
by RESET
onp.;t
S
t:'l.r
l
add•C-SS
by
Ml
1
npv1
S1art
nddress
by
NMI input
Start
address
by
timer
1
ntetrupt
11
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