Sharp MZ-700 - MZ-700 System Diagram

4. 1
MZ-700 System Diagram
The figure below shows the system configuration of the MZ-700 series computers.
(
CRT
F.G.
Power
§!
sw itc h
240/220V f -t
~
I
I
~~
RGB-6
I
I
q,-
I
I
5V
Memory controller
R
_p
Col or
I
I
unit
(CRTC)
Video RAM
enco der
,.---
I
I
RF
J
I
t--
X
I
cJ
J Character ~
VIDEO
Reset
generator
"E
__ _j
Reset
circuit
"'
sw i tch
:2;
Main
memory
64K bytes
I
MONITOR
"'·
ROM
Z80A I-
l
11
r-
CPU
Address bus
\
[L
./ _g
l
I
2.
A
\
c
.2
Data bus
,/
c
•
r J
I
~J, r
t----
T
V
"'
a.
~
X
Control
bus
w
~
'
. ..
Address decoder r-
~ t-- ~
'---
;.r ,
u
J
..
! ~
8253
,-..
8255
Tempo I
eo C1 C2
\
co ntroller
~~
.• f
1
~
I
Tempo/cursor}
Keyboar d I.
Cassette
Joy st ick
·,
Audio amplifier
I--
contro ll er
circuit
oscillator
t--
Prin te r I
contr oll er
Cassette
Jo ys tick
\.
Print er bus
terminal terminal
./
c::J
~sset~
tape deck
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