Table 3 Functions and Conditions of DIP Switch 2
Pin
Function
ON OFF
Factory-set
No.
Condition
1
Selectors
of
special
characters/symbols
-
-
ON
-
fSee
Table
8)
2
-
ON
3
AUTO
FEED
Fixed
internally
XT
signal
1
Fixed
Not
Not
fixed
internally
fixed
OFF
4
Coding
table
TRS80
select
Standard
TRS-8@
Standard
OFF
NOTE: When DIP Switch pin 2-4 is set to the “ON” position (for TRS-80 mode), all the
other pins of the DIP switches 1 and 2 will not function irrespective of these
ON/OFF positions.
Table 4 Special Characters/Symbols Available for Selection
(using DIP Switch Pins 2-1 and 2-2)
SW2-1
SW 2-2
ON
ON
ON
OFF
OFF ON
Country
U.S.A.
France
Germany
I
1
OFF
OFF
England
I
7. Parallel Interface
The MX-80 F/T includes a parallel interface as the standard equipment, and
this paragraph describes the parallel interface.
(1) Specifications
(a) Data transfer rate: 1000 CPS (max.)
(b) Synchronization:
By externally supplied STROBE pulses.
(c) Handshaking: By ACKNLG or BUSY signals.
(d) Logic level: Input data and all interface control signals are
compatible with the TTL level.
/
(2) Connector
Plug: 57-30360 (AMPHENOL)
It is recommended that interface cables be kept as short as possible.
(3) Connector pin assignment and descriptions of signals.
Connector pin assignment and descriptions of respective interface signals
are provided in Table 5.
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