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Sharp MZ-5500 Tehnical Manual

Sharp MZ-5500
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iii)
Window
controller
(LZ90E07,
LZ9lF07)
cGeneral
description
of
the
WDC
The window
controller
displ,ays
a
rectangular
area
from
the
VRAM
in
the
desired
location
of
the
display
screen
as
shown
in
Fig.l
i
-2.
v-
RA
t1
eR
T
A
B
Background
color
~
Here,
rectangular
areas
of
A, B, C,
and
D
are
called
window
Fig.lS-2
°Features
(1)
A maximum
of
four
windows
can
be
displayed.
(2)
Euch window
ean
have
its
priority
specified,
and,
it
allows
overlay
of
windows.
(3)
When
there
ar
.e
three
VRAM
planes,
it
is
possible
to
display
by
plane
or
overlaid
display
of
two
or
three
planes.
(4)
It
is
possible
td
make
direct
output
of
the
inputted
address
without
the
use
of
the
window
funetion.
°WDC
registers
(1)
RNO
register
(1/0
address
110H)
Register
number
(0
-
12)
is
set.
IX x x x !
RNO
RNO
=
O-12
(2)
Priority
register
(1/0
address
112H)
Priority
is
set
to
window.
l 8
bits--7
RNO=O
I
PWO
I
PWl!
pW21
PW3
!
\
.L-
Pr~ority
of
the
window ' 3
.'---
Prl0rity
of
the
windm.,;r
2
.
\
Priority
of
the
window 1
\
\...-------
Priority
of
the
window 0
.,
q,\

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Sharp MZ-5500 Specifications

General IconGeneral
BrandSharp
ModelMZ-5500
CategoryDesktop
LanguageEnglish

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