(82'79, Keyboardmisplay controller).
s
space (CS9) is 80H-8FI-T. Circuit
is
oded mode using four Scan-lines
turn-lines which enables reading
of keyboard's 27 keys.
(34RC00,
NAND
Gate)
is
used to
encode Enable-signal for the display using
-,
WR-
and CS10-
Is. Address space
for the display
is
90
.
Data for display
is read
from
data-bus.
6
is
a chip select signal for
AD
con
CUZ. Address space for
Table
3-11
illustrates AID
conversion control signals.
(Connector for IEEE-4881 RS-2321
GENTRONX
interface, as an option)
(XEEE-488 interface) contains
chuit
131
(8291,
GPTB
TalkerListener).
Address space for CS4 is 40H-3FH. See
functional description of circuit D33.
Pcb
RS-IF0
(RS-232 interface) has the same
operation as item 5.
D36
(74LS151,
multiplexer) placed on pcb MUSCU2 is
controlled by DIP-switch S
1
to set appropriate
Baud rate.
Address space for
CS5
is
4OH-4FFI.
CENTRONIX option is connected to the
printer connector (on pcb MUSCU2).
Platecanier home position
detection (hall element),
WR
Start-signal for
conversion,
1,
A8 Ad&ess-line
-
.-
-
--
-
CS6 AID converter enable,
TS
conversion in progress
130-D4
Data lines
60-62
converter gain set
signals
CEIO-CH2
Channel selection lines for
channels A-R
Table
3-9
Air)
conversion control signals
Document Release ection Page
3511352-
auo-x
2.0
3
15
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