I
~
I
VDC1
timing
for
drawing
cycle
(1)
o
46.56
93.1
139.65
1862
312.4
ns
(400
raster
display)
o
69.83
139.16
209.4 279.3
556.88
ns
(200 raster display)
CKO-2
Oof
HOOl
a
of
HOO2
-+l
14-
3.6
-22.6
J \ / / / \ I
,-----..,
-o!
1-5.4-83.9
..
\ I
'--_...J
1
\
~
a
of
H003
~-------=-.j:L......l1-
10.9-57+22
n max 122n. relUit.
f,om
7404.1
'----------'
\ /
L-
a
of
HOO4
2XCCLK
(GDC)
ADO-15
DBIN
~
\
Ir-------~
t
30-130
\
r
80-130
r
Address
I min
I
~
1
70min
80-180
\ 1
80-180
Out
put
~
A16.A17
I
Ad....
X
invalid
r
--
I'
80-160 t
I.
i
20-80
RAS
draw
VSHS
BLANK
'ii'i\So::5
R/CS
CAS
CRAM
OP
DBD
WE
- X
I
L-
____
__
=-i
F 7.2-64.2 [CPU
I
CPU
\L
________
~~~~~--------------------------------------------------_=====~
-_:::::::::::::::_-_-_...J
_____________________________________
::!j~F
7.2-45.2
Q
of
HOO9
\
IDBINI
-.j
j4-
6.5-40
a
of
HO,2
--------------------------------------~\
I
-+!
t
6.3-40
a
of
HO' 3
-_:=================================================================~
___________
---I~t4=
6.3-40
if
draw
-1
1'--9-54.7
\ I
\
-01
j4-
9-54.7
,----
~--------------------------------~\~----------------------------~.
-+I
I+-
11-57.8
____
~/~----~\
I
~
-+f
1+-"-57.8
Q
of
H014
(;053
DAS
MASK
G054
CASMASK
___
-Ir-------'-'\
I \ \ \ I
1
/;:
~~--;,4!:;~x
-+j
1-10.3-58.8+20n
max 1 8.5-46.6
-+!
/4-8.5+46.6+20n max l20nHeoult,f,om
LS51.1
-+I
j.--~,;~a~+
--------------~
~----------------~~~~3~.2~_7.10~1.~1-----------------------------------------1
/
-+!
I-
-I
1"-121-63.3
-o!
j4-12.2-
\ ______
~~~~~~~
________
...
j \
63.1
~
--------------------------------------------------------------------------------~-.j::.t,j4-
22.9-10
7.2
\ I
Fig. 108
~I
<=>