Interfacing With The Mz-700; Table Of Character Set - Sharp MZ-700 Service Manual

,Q 700
7-2. Interfacing with the MZ-700
Fig. 1 shows the block diagram for connection with the
printer. Fig. 2 shows its circuit description. Fig. 3 shows
the timing chart.
Table of character set
Figure 1. Block diagram
00---1
00---1
AROP---t
ROA---;
Buffer
~
LSD
0
I
2
3
4
5
6
7
8
9
A
B
c
D
E
F
0 I
W
[1]
B
0
[8J
[g
2 3 4 5
sp
0 @
p
0 1
A
Q
""
11
2 B
R
# 3 C S
$
4 0
T
%
5 E U
8x 6 F
U
/ 7 G
W
C
8
H ><
,
9 I 'I
j
*
c
J
~
c
+
c
K [
5
5
<
L
""
-
-
M
]
-
c
>
N
t
/
?
0
~
MPU
The CPU sends data to the printer after confirming that
RDA is in low state. Five micro seconds later, the strobe
signal ARDP goes high. The CPU confirms that RDA is
in high state, ARDP is returned to a low state 14.5 micro
seconds later.
6 7
c
i
I
8
>
A
9
A B
C
q
n
0
-
e
z
U
" w m
"v
S
u
t
,
---1
1
9 0
h
0
I
k
A
b' f
- -
0
- -
X V 01
d
i
r uiyl
PI,B
i {
C
J
=
TranSistor
array
Solenoid driver
D
=
Functional Switches
PAPER FEED
PEN CHANGE
ROA - - - - - ,
E
F
1
[
\~
\
[
Color position
detector
X.axls
stepping motor
Y.axls
stepping motor
PEN UP/Down
SOlenoid
DATA ______
~~~------~------
I
I
I
A ROP
------r-----I,
L
1
I
-I
Figure 2. Interfacing timing
-+---i-:
--5,us
1
14.5
1
I
,
,us
23