
Apple II Computer Info
OFF ON OFF OFF 3600
OFF OFF ON ON 4800
OFF OFF ON OFF 7200
OFF OFF OFF ON 9600
OFF OFF OFF OFF 19200
Switch SW1-5 and 1-6 set the operation mode of the card.
1-5 1-6 mode
ON ON Communications
OFF ON Printer
ON OFF Emulate Apple Serial Interface Card with P8 PROM
OFF OFF Emulate Apple Serial Interface Card with P8A PROM
Switches SW1-7 and SW2-7 select between the standard and secondary
Clear To Send signals when the jumper block is set to TERMINAL.
1-7 2-7 pin
ON OFF CTS
OFF ON SCTS
If the jumper block is set to MODEM, SW1-7 should always be ON and
SW2-7 should always be OFF.
Switches SW2-1 through SW2-4 have different functions if "Printer" or
"Communications" mode is enabled.
In "Printer" mode, the functions are as follows:
SW2-1 Default data format
ON 8 data, 1 stop
OFF 8 data, 2 stop
SW2-2 Delay after sending out a RETURN character
OFF None
ON 32 milliseconds
SW2-3 and SW2-4 set line width and video output
2-3 2-4 Function
ON ON 40 column output, video on
ON OFF 72 column output, video off
OFF ON 80 column output, video off
OFF OFF 132 column output, video off
In "Communications" mode, the functions are as follows:
SW2-1 Default number of stop bits
ON 1 stop bit
OFF 2 stop bits
SW2-2 Default number of data bits
ON 8 data bits
OFF 7 data bits
SW2-3 Default parity mode (if parity is enabled)
ON odd parity
Apple II Computer Technical Information : Apple II Family Hardware Info
ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 468 of 572
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