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MC-4
JAN,13,1982
MTR-100
Connector Board
POWER
Cassette
Tape-
Transport
MT-2
MC-4
CPU
1G31
BUFFER
IC13
IC15
ADDRESS
BUS
DATA
BUS
ou
10K
Byte
ROM
IC32-IC36
nil
16K
Byte
RAM
IC1-IC3
CONTROL
BUS
-^'
_jji
:t_
CLOCK
OSC
IL
TIMER
IC30
ITC
CPU
BOARD
1
[
1^^,otg^?
Pq":P?_
.
ELCK
READ
SEL
4^av
r"
BUFFER
IC12
A
32K
Byte
RAM
ICMC8
IC16-tC23
CONNECTO
R
BOARD
n
BUFFER
fC27
B
BUFFER
JC12
C
1
iC12
CM
Digital
Cassette Interface
UT
I/O
PORT
(8
bit
X
6)
IC29,
I
CBS
Audio
Cassette
Tape,
Sync
I
nterf ace
D/A
S/H
LATCHES
A-CMT
SYNC
CV
GATE
MPX
1
^
i
I
i
I
DISPLAY
LED
RAM BOARD
{OM-41
"n
KEYSW
MATRIX
J
1
I
I
SIGNALS
THROUGH
RAM BOARD CONNECTORS
RS0^RS2
:
ADDRESSES
A0-A2
Select
one
of
MT-2
internal
8
registers.
DO-D?
:
PARALLEL
BUS
Transfers
8
bit
data
from
/to
MT-2,
ELCK
;
SYNC CLOCK
derived
from
CPU
CLOCK
Controls
MT-2 MT-2
operations.
READ
:
Signals
MT-2
direction
of
data
flow
on
the data
buss.
SE
L
:
Indicates
that
CPU
nam^s
MT
2.
Gates
Buffers A, B
and
C.
-I-5V
:
Informs
I
ntarf ace that
IVtT-2
power
is
ON,
JACK
BOARD
CONTROL BOARD
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