User Guide

I
ElN.AOclclF
IC TERMINAL
FUNCTION LIST
TABLE
OF
MTCROCOMPUTER
(rC800)
TERMTNALS
1C800 is utilizing an external
ROM in its initial lot until using the mask
item. As
the contents of same terminals ditfer according
to the
lot for this reason,
please
be
reminded
at
a time
performing
service.
External ROM
utilizing
models
are up to these serial
numbers
listed
below.
Model Serial No.
EUROPE
-881,886-950
u.K.
-
300
u.s.A.
-
620
Model
CANADA
Multi-Vollage
Serial
No.
-
130
-
100
Terminal
No.
Symbol
Name
vo
Terminal Function
1
CUEL2 o CUE
LED ON/OFF siqnal of CD-2. ON at'H".
2 PLYL2 o PLAY LED ON/OFF signal
of CO-2.
ON at
"H".
PITL2
PITCH LED ON/OFF signal ol CD-2. ON at
"H".
4
PITLl
o
PITCH LED ON/OFF signal of CD-1. ON at
"H".
5 PLYLl o
PLAY LED
ON/OFF
sional ot CO-1. ON at
"H".
CUELl CUE LED ON/OFF
signal of CD-l. ON at
"H'.
RST- Hard
reset input. Reset at
"L"
a
Voo +5V
power
supply.
9 x2 Clock oscilation
circuit
input
2.
0
X1
Clock
oscilation circuit
input 1
vss
0V
power
supply.
2 Vss 0V
power
supply.
3 Not connected.
4
LWCZ
Chio enable sional ot
CD-2's LCD driver.
LCLK2 Command transmitting
clock
lor
CD-2's
LCD driver
o LDAT2 Command data
tor CD-2's LCD driver.
7 LCEl o Chip enable
signal o{ CD-1's LCD driver.
d
LCLKl
U
Command
transmitting
clock {or
CD-l's
LCD driver.
o
LDATl
o
Command data
tor CD-1's LCD driver.
o
Not
used.
Fixed to
"L'.
21
Not Connected.
Not
used.
Fixed
to'L".
z5 Not used.
Fixed
to
'L".
24 o
Not
used.
Fixed to
"U.
25
WR- Not used.
Mask ilem...
fixed
to
"L',
extemal
ROM... fixed to
"H".
zo
(JE-
o Enable signal
output
for
external
ROM. Mask item...
fixed
to
"L",
external ROM...
pulse
output
fot reading
27 KOUT3
Kev matrix scan siqnal
3.
28 KOUT2 o Key
matrix
scan
signal 2.
29 KOUTl o
Key matrix scan signal
1
30
KOUTO
Key matrix scan signal 0.
el
Not mnnected.
32 A15
Memory address
15. Not used.
Mask ilem... fixed to
"L''.
JJ 414
o
Memory address
14. Mask item...
fixed
to'L".
34 413
Memory
address
13. Mask item... fixed to
"U.
JJ Not
connected.
JO 412 o Memorv address
12. Mask
item... fixed
to
"L".
37 All
Memory address
11. Mask item... tixed to
"L".
38 410
Memorv address
10. Mask item... lixed to
"f.
39
A9 o Memory address
9. Mask item...
lixed
to
"L".
40 A8 o
Memory address 8.
Mask item... lixed
to
"L'.
41 Not connected.
22