Sharp MZ-5500 Tehnical Manual page 105

Data in
Data in
nnta in
VDS 0
VDS
J
Color circuit
VDS2
plane
plane
plane
0
Plane
pr-Iority
Se.leeto
r
1 _ __
Back.srou nd
color
OlÄ-t P4t
2
Bonler- c.olor
Normal
Reverse
Select signal (DO of 120B)
Monochrome c ircuit
Fig.15-10
VDC inte~nal
°Plane priority register (1/0 address 122H)
Only when D2 of the 1/0 address 120H is 1, the display data are converted
as in Table 15-5 by the value given to 122H.
Tabl~ 15-5
~
i22H
Befo
change
After change
j
0
1
2
3
4
'V
' 7
0:0 0
o
,0 0 O!O
0 0;0 0
0:0 0
0:0 0
0;0 1
o
:0 1 0:0 1 0:0 1 0:0 1 0'0 1
0,1 0
o
11 0
Oll 0 0' 1 0 01 1 0 0' 1 0
0,1
1
o :
1
1 Oll 1 011 1
0: 1 1
0
'
1 1
1 : 0 0
0:0 0
110 0
1 1
0 0 1:0 0
11 0 0
l' 0 1
0:0 1
0'0 1 1 '0 0 1,0 0
1; 0 0
1 ; 1 0 0: 1 0 O~ 1 0 0: 1 0 110 0
110 0
1 : 1
1
0: 1 1
0:1 1
0' 1 1 011 1 110 0
Plane
~
1l
t
Plane 0
Plane 1
data,
Priori
plane 1, and plane O.
ty order is given for
The
four
data of plane
kinds of data
2 would
composed of
not
the plane 2
be obtained if
o
was set when there is a data in the plane 2, as it is lower in its
priority order than the four kinds of data composed of plane 1 and
plane O.
As the value is increased, it makes the plane 2 priority changed hjgher.
Givjng the ' value of 4 - 7 will make it higher in its priority than any of
four kind data compos ed of the plane 1 and plane 0, so that data of
plane land plane 0 are not obtained.
ID2