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Re: Apple2 keyboard connector pinout
- Subject: Re: Apple2 keyboard connector pinout
- From: "James P. Meyer" <jimbob@acpub.duke.edu>
- Date: 1996/10/26
- Newsgroups: comp.sys.apple2
- Organization: Duke University, Durham, NC, USA
- References: <54u3gl$hgn@nntp.interaccess.com>
On 26 Oct 1996, Artur Jasowicz wrote:
> I am looking for as detailed as possible info on 16 pin keyboard socket
> on the AppleII main logic board. I don't have keyboard for it, designed
> my own interface to connect IBM-XT keyboard, but need more info.
> Here is what I have so far:
With additions.....
> Pin Usage
> 1 +5V
> 2 Strobe
> 3 Reset, low to reset, normally high
> 4 No connection
> 5 D5
> 6 D4
> 7 D6
> 8 GND
> 9 No connection
> 10 D2
> 11 D3
> 12 D0 Note that there are only
> 13 D1 seven data bits. No hi-ascii!
> 14 No connection
> 15 -12V
> 16 No connection
>
> Any corrections/additions welcomed. Look at my web page if you are
> interested in interfacing IBM keyboard to AppleII
I had a Commodore VIC-20 when I built an Apple ][ clone from a
bare board. I spent all my money on the motherboard and one disk drive
and didn't have anything left over for a real keyboard. So I programmed
the VIC-20's user port to send ASCII to the Apple. It worked really
well. The VIC-20 could even be programmed to send whole strings to the
Apple with a single keystroke. I had a "smart" keyboard!
Jim